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- 功能总览
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开发指南
-
开发指南(分布式_V2.0-8.x)
- 数据库系统概述
- 数据库安全
- 数据库使用入门
- 开发设计建议
-
应用程序开发教程
- 开发规范
- 获取驱动包
-
基于JDBC开发
- JDBC包、驱动类和环境类
- 开发流程
- 加载驱动
- 连接数据库
- 连接数据库(以SSL方式)
- 连接数据库(UDS方式)
- 连接数据库(以国密TLS方式)
- 执行SQL语句
- 处理结果集
- 关闭数据库连接
- 日志管理
- 示例:常用操作
- 示例:重新执行应用SQL
- 示例:逻辑复制代码示例
- 示例:不同场景下连接数据库参数配置
-
JDBC接口参考
- java.sql.Connection
- java.sql.CallableStatement
- java.sql.DatabaseMetaData
- java.sql.Driver
- java.sql.PreparedStatement
- java.sql.ResultSet
- java.sql.ResultSetMetaData
- java.sql.Statement
- javax.sql.ConnectionPoolDataSource
- javax.sql.DataSource
- javax.sql.PooledConnection
- javax.naming.Context
- javax.naming.spi.InitialContextFactory
- CopyManager
- PGReplicationConnection
- PGReplicationStream
- ChainedStreamBuilder
- ChainedCommonStreamBuilder
- JDBC常用参数参考
- 常见问题处理
- JDBC数据类型映射关系
- 基于ODBC开发
- 基于libpq开发
- 基于Psycopg开发
- 基于ecpg开发
- 基于Go驱动开发
- 兼容性参考
- 调试
-
SQL调优指南
- Query执行流程
- SQL执行计划介绍
- 调优流程
- 更新统计信息
- 审视和修改表定义
- 典型SQL调优点
- 经验总结:SQL语句改写规则
- SQL调优关键参数调整
-
使用Plan Hint进行调优
- Plan Hint调优概述
- 指定Hint所处的查询块Queryblock
- Hint可以指定表的查询块名和schema名
- Join顺序的Hint
- Join方式的Hint
- 行数的Hint
- Stream方式的Hint
- Scan方式的Hint
- 子链接块名的hint
- 运行倾斜的Hint
- 参数化路径的Hint
- Hint的错误、冲突及告警
- Plan Hint实际调优案例
- 优化器GUC参数的Hint
- Custom Plan和Generic Plan选择的Hint
- 指定子查询不展开的Hint
- 指定不使用全局计划缓存的Hint
- 同层参数化路径的Hint
- 设置慢SQL管控规则的Hint
- 支持bitmapscan的Hint
- 连接时内表物化的Hint
- 指定agg算法的Hint
- 查询改写的Hint
- 指定Any子链接提升的Hint
- 指定扫描并行度的Hint
- 指定是否使用Semi Join的Hint
- 指定是否使用minmax优化的hint
- 指定是否使用partition-wise scan优化的hint
- 检查隐式转换的性能问题
- 使用向量化执行引擎进行调优
- 使用SQL PATCH进行调优
- 实际调优案例
-
SQL参考
- GaussDB SQL
- 关键字
- 数据类型
- 字符集与字符序
- 常量与宏
-
函数和操作符
- 逻辑操作符
- 比较操作符
- 字符处理函数和操作符
- 二进制字符串函数和操作符
- 位串函数和操作符
- 模式匹配操作符
- 数字操作函数和操作符
- 时间和日期处理函数和操作符
- 类型转换函数
- 几何函数和操作符
- 网络地址函数和操作符
- 文本检索函数和操作符
- JSON/JSONB函数和操作符
- HLL函数和操作符
- SEQUENCE函数
- 数组函数和操作符
- 范围函数和操作符
- 聚集函数
- 窗口函数
- 安全函数
- 账本数据库的函数
- 密态函数和操作符
- 返回集合的函数
- 条件表达式函数
- 系统信息函数
- 系统管理函数
- SPM计划管理函数
- 统计信息函数
- 触发器函数
- HashFunc函数
- 提示信息函数
- 故障注入系统函数
- 重分布函数
- 分布列推荐函数
- 其他系统函数
- 内部函数
- AI特性函数
- 敏感数据发现函数
- 动态数据脱敏函数
- 层次递归查询函数
- hotkey特性函数
- Global SysCache特性函数
- 数据损坏检测修复函数
- XML类型函数
- XMLTYPE类型函数
- 数据透视函数
- Global Plsql Cache特性函数
- 通用标识符函数
- SQL限流函数
- 多租数据库函数
- 废弃函数
- 表达式
- 伪列
- 类型转换
- 系统操作
- 事务控制
-
SQL语法
- SQL语法格式说明
- DCL语法一览表
- DDL语法一览表
- DML语法一览表
- 其他语法一览表
- Online DDL及其操作
-
A
- ABORT
- ALTER AGGREGATE
- ALTER AUDIT POLICY
- ALTER COLUMN ENCRYPTION KEY
- ALTER COORDINATOR
- ALTER DATABASE
- ALTER DATABASE LINK
- ALTER DEFAULT PRIVILEGES
- ALTER DIRECTORY
- ALTER FOREIGN DATA WRAPPER
- ALTER FOREIGN TABLE
- ALTER FUNCTION
- ALTER GLOBAL CONFIGURATION
- ALTER GROUP
- ALTER INDEX
- ALTER LANGUAGE
- ALTER MASKING POLICY
- ALTER MATERIALIZED VIEW
- ALTER NODE
- ALTER NODE GROUP
- ALTER PACKAGE
- ALTER PROCEDURE
- ALTER RESOURCE LABEL
- ALTER RESOURCE POOL
- ALTER ROLE
- ALTER ROW LEVEL SECURITY POLICY
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- ALTER SYNONYM
- ALTER SYSTEM KILL SESSION
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TABLESPACE
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER VIEW
- ANALYZE | ANALYSE
- B
-
C
- CALL
- CHECKPOINT
- CLEAN CONNECTION
- CLOSE
- CLUSTER
- COMMENT
- COMMIT | END
- COMMIT PREPARED
- COPY
- CREATE AGGREGATE
- CREATE AUDIT POLICY
- CREATE BARRIER
- CREATE CLIENT MASTER KEY
- CREATE COLUMN ENCRYPTION KEY
- CREATE CONVERSION
- CREATE DATABASE
- CREATE DATABASE LINK
- CREATE DIRECTORY
- CREATE EXTENSION
- CREATE FOREIGN DATA WRAPPER
- CREATE FOREIGN TABLE
- CREATE FUNCTION
- CREATE GLOBAL INDEX
- CREATE GROUP
- CREATE INCREMENTAL MATERIALIZED VIEW
- CREATE INDEX
- CREATE LANGUAGE
- CREATE MASKING POLICY
- CREATE MATERIALIZED VIEW
- CREATE MODEL
- CREATE NODE
- CREATE NODE GROUP
- CREATE PACKAGE
- CREATE PROCEDURE
- CREATE RESOURCE LABEL
- CREATE RESOURCE POOL
- CREATE ROLE
- CREATE ROW LEVEL SECURITY POLICY
- CREATE SCHEMA
- CREATE SECURITY LABEL
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLESPACE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TABLE PARTITION AS
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE VIEW
- CREATE WEAK PASSWORD DICTIONARY
- CURSOR
-
D
- DEALLOCATE
- DECLARE
- DELETE
- DO
- DROP AGGREGATE
- DROP AUDIT POLICY
- DROP CLIENT MASTER KEY
- DROP COLUMN ENCRYPTION KEY
- DROP DATABASE
- DROP DATABASE LINK
- DROP DIRECTORY
- DROP EXTENSION
- DROP FOREIGN DATA WRAPPER
- DROP FOREIGN TABLE
- DROP FUNCTION
- DROP GLOBAL CONFIGURATION
- DROP GROUP
- DROP INDEX
- DROP LANGUAGE
- DROP MASKING POLICY
- DROP MATERIALIZED VIEW
- DROP MODEL
- DROP NODE
- DROP NODE GROUP
- DROP OWNED
- DROP PACKAGE
- DROP PROCEDURE
- DROP RESOURCE LABEL
- DROP RESOURCE POOL
- DROP ROLE
- DROP ROW LEVEL SECURITY POLICY
- DROP SCHEMA
- DROP SECURITY LABEL
- DROP SEQUENCE
- DROP SERVER
- DROP SYNONYM
- DROP TABLE
- DROP TABLESPACE
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP VIEW
- DROP WEAK PASSWORD DICTIONARY
- E
- F
- G
- I
- L
- M
- P
- R
- S
- T
- U
- V
- 附录
- 最佳实践
- 用户自定义函数
- 存储过程
- 自治事务
-
系统表和系统视图
- 系统表和系统视图概述
-
系统表
- 分区表
- 负载管理
- OLTP表压缩
- 密态等值查询
- 通信
- 账本数据库
- SPM计划管理
- AI
- 审计
- 用户和权限管理
- 连接和认证
- 动态脱敏
- DATABASE LINK
- 物化视图
- 逻辑解码
- 多租数据库
-
其他系统表
- GS_ASP
- PGXC_COPY_ERROR_LOG
- GS_DEPENDENCIES
- GS_DEPENDENCIES_OBJ
- GS_IMCV
- GS_GLOBAL_CONFIG
- GS_JOB_ATTRIBUTE
- GS_JOB_ARGUMENT
- GS_PACKAGE
- GS_PLAN_TRACE
- GS_POLICY_LABEL
- GS_RECYCLEBIN
- GS_SECURITY_LABEL
- GS_SQL_PATCH
- GS_STATISTIC_EXT_HISTORY
- GS_STATISTIC_HISTORY
- GS_TABLESTATS_HISTORY
- GS_TS_DICT_DEFINITION
- GS_TXN_SNAPSHOT
- GS_UID
- GS_WORKLOAD_RULE
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_CAST
- PG_CLASS
- PG_COLLATION
- PG_CONSTRAINT
- PG_CONVERSION
- PG_DATABASE
- PG_DEPEND
- PG_DESCRIPTION
- PG_DIRECTORY
- PG_ENUM
- PG_EXTENSION
- PG_FOREIGN_DATA_WRAPPER
- PG_FOREIGN_SERVER
- PG_FOREIGN_TABLE
- PG_HASHBUCKET
- PG_INDEX
- PG_INHERITS
- PG_JOB
- PG_JOB_PROC
- PG_LANGUAGE
- PG_LARGEOBJECT
- PG_LARGEOBJECT_METADATA
- PG_NAMESPACE
- PG_OBJECT
- PG_OPCLASS
- PG_OPERATOR
- PG_OPFAMILY
- PG_PLTEMPLATE
- PG_PROC
- PG_RANGE
- PG_REPLICATION_ORIGIN
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_SET
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_STATISTIC
- PG_STATISTIC_EXT
- PG_SYNONYM
- PG_TABLESPACE
- PG_TRIGGER
- PG_TS_CONFIG
- PG_TS_CONFIG_MAP
- PG_TS_DICT
- PG_TS_PARSER
- PG_TS_TEMPLATE
- PG_TYPE
- PGXC_CLASS
- PGXC_GROUP
- PGXC_SLICE
- PLAN_TABLE_DATA
- STATEMENT_HISTORY
- STREAMING_STREAM
- STREAMING_CONT_QUERY
-
系统视图
-
分区表
- ADM_IND_PARTITIONS
- ADM_IND_SUBPARTITIONS
- ADM_PART_COL_STATISTICS
- ADM_PART_INDEXES
- ADM_PART_TABLES
- ADM_SUBPART_KEY_COLUMNS
- ADM_TAB_PARTITIONS
- DB_IND_PARTITIONS
- DB_IND_SUBPARTITIONS
- DB_PART_COL_STATISTICS
- DB_PART_KEY_COLUMNS
- DB_PART_TABLES
- DB_SUBPART_KEY_COLUMNS
- DB_TAB_PARTITIONS
- DB_TAB_SUBPARTITIONS
- MY_IND_PARTITIONS
- MY_IND_SUBPARTITIONS
- MY_PART_COL_STATISTICS
- MY_PART_INDEXES
- MY_PART_KEY_COLUMNS
- MY_PART_TABLES
- MY_SUBPART_KEY_COLUMNS
- MY_TAB_PARTITIONS
- GS_STATIO_ALL_PARTITIONS
- GS_STAT_XACT_ALL_PARTITIONS
- GS_STAT_ALL_PARTITIONS
- 负载管理
- OLTP表压缩
-
通信
- COMM_CLIENT_INFO
- GLOBAL_COMM_CLIENT_INFO
- GS_COMM_LISTEN_ADDRESS_EXT_INFO
- GS_GET_LISTEN_ADDRESS_EXT_INFO
- GS_LIBCOMM_FD_INFO
- GS_LIBCOMM_MEMORY_INFO
- GS_STATIC_THREADPOOL_CTRL_STATUS
- PG_COMM_DELAY
- PG_COMM_RECV_STREAM
- PG_COMM_SEND_STREAM
- PG_COMM_STATUS
- PG_GET_INVALID_BACKENDS
- PG_POOLER_STATUS
- PGXC_COMM_DELAY
- PGXC_COMM_RECV_STREAM
- PGXC_COMM_SEND_STREAM
- PGXC_COMM_STATUS
-
段页式存储
- GLOBAL_GS_SEG_DATAFILES
- GLOBAL_GS_SEG_EXTENTS
- GLOBAL_GS_SEG_SEGMENTS
- GLOBAL_GS_SEG_SPC_EXTENTS
- GLOBAL_GS_SEG_SPC_SEGMENTS
- GS_SEG_DATAFILES
- GS_SEG_DATAFILE_LAYOUT
- GS_SEG_EXTENTS
- GS_SEG_SEGMENTS
- GS_SEG_SEGMENT_LAYOUT
- GS_SEG_SPC_EXTENTS
- GS_SEG_SPC_SEGMENTS
- GS_SEG_SPC_REMAIN_EXTENTS
- GS_SEG_SPC_REMAIN_SEGMENTS
- SPM计划管理
- 审计
-
用户和权限管理
- ADM_COL_PRIVS
- ADM_ROLE_PRIVS
- ADM_ROLES
- ADM_SYS_PRIVS
- ADM_TAB_PRIVS
- ADM_USERS
- DB_COL_PRIVS
- DB_DIRECTORIES
- DB_TAB_PRIVS
- DB_USERS
- GS_DB_PRIVILEGES
- GS_LABELS
- MY_COL_PRIVS
- MY_ROLE_PRIVS
- MY_SYS_PRIVS
- PG_RLSPOLICIES
- GS_RLSPOLICIES
- PG_ROLES
- GS_ROLES
- PG_SECLABELS
- GS_SECLABELS
- PG_SHADOW
- GS_SHADOW
- PG_USER
- GS_USER
- PG_USER_MAPPINGS
- ROLE_ROLE_PRIVS
- ROLE_SYS_PRIVS
- ROLE_TAB_PRIVS
- 动态脱敏
- DATABASE LINK
- 物化视图
- 多租数据库
-
其他系统视图
- ADM_ARGUMENTS
- ADM_COL_COMMENTS
- ADM_COLL_TYPES
- ADM_CONS_COLUMNS
- ADM_CONSTRAINTS
- ADM_DATA_FILES
- ADM_DEPENDENCIES
- ADM_DIRECTORIES
- ADM_HIST_SNAPSHOT
- ADM_HIST_SQL_PLAN
- ADM_HIST_SQLSTAT
- ADM_HIST_SQLTEXT
- ADM_IND_COLUMNS
- ADM_IND_EXPRESSIONS
- ADM_INDEXES
- ADM_OBJECTS
- ADM_PROCEDURES
- ADM_SCHEDULER_JOB_ARGS
- ADM_SCHEDULER_JOBS
- ADM_SCHEDULER_PROGRAM_ARGS
- ADM_SCHEDULER_PROGRAMS
- ADM_SCHEDULER_RUNNING_JOBS
- ADM_SEGMENTS
- ADM_SEQUENCES
- ADM_SOURCE
- ADM_SYNONYMS
- ADM_TAB_COL_STATISTICS
- ADM_TAB_COLS
- ADM_TAB_COLUMNS
- ADM_TAB_COMMENTS
- ADM_TAB_HISTOGRAMS
- ADM_TAB_STATISTICS
- ADM_TAB_STATS_HISTORY
- ADM_TABLES
- ADM_TABLESPACES
- ADM_TRIGGERS
- ADM_TYPE_ATTRS
- ADM_TYPES
- ADM_VIEWS
- DB_ARGUMENTS
- DB_ALL_TABLES
- DB_COL_COMMENTS
- DB_COLL_TYPES
- DB_CONS_COLUMNS
- DB_CONSTRAINTS
- DB_DEPENDENCIES
- DB_IND_COLUMNS
- DB_IND_EXPRESSIONS
- DB_INDEXES
- DB_OBJECTS
- DB_PROCEDURES
- DB_SCHEDULER_JOB_ARGS
- DB_SCHEDULER_PROGRAM_ARGS
- DB_SEQUENCES
- DB_SOURCE
- DB_SYNONYMS
- DB_TAB_COL_STATISTICS
- DB_TAB_COLUMNS
- DB_TAB_COMMENTS
- DB_TAB_HISTOGRAMS
- DB_TAB_MODIFICATIONS
- DB_TAB_STATS_HISTORY
- DB_TABLES
- DB_TRIGGERS
- DB_TYPES
- DB_VIEWS
- DICT
- DICTIONARY
- DUAL
- DV_SESSIONS
- DV_SESSION_LONGOPS
- GET_GLOBAL_PREPARED_XACTS
- GLOBAL_BAD_BLOCK_INFO
- GLOBAL_CLEAR_BAD_BLOCK_INFO
- GLOBAL_SQL_PATCH
- GLOBAL_STAT_HOTKEYS_INFO
- GLOBAL_WAL_SENDER_STATUS
- GS_ALL_CONTROL_GROUP_INFO
- GS_ALL_PREPARED_STATEMENTS
- GS_BUCKET_LOCKS
- GS_GET_CONTROL_GROUP_INFO
- GS_GLOBAL_ARCHIVE_STATUS
- GS_GSC_MEMORY_DETAIL
- GS_IMCU_SLOT_STATUS
- GS_IMCV_STATUS
- GS_LOGICALSTANDBY_SKIP
- GS_LOGICALSTANDBY_SKIP_TRANSACTION
- GS_LSC_MEMORY_DETAIL
- GS_MY_PLAN_TRACE
- GS_SESSION_ALL_SETTINGS
- GS_SQL_COUNT
- GS_TOTAL_NODEGROUP_MEMORY_DETAIL
- GS_WORKLOAD_RULE_STAT
- GV_INSTANCE
- GV_SESSION
- MPP_TABLES
- MY_AUDIT_TRAIL
- MY_COL_COMMENTS
- MY_COLL_TYPES
- MY_CONS_COLUMNS
- MY_CONSTRAINTS
- MY_DEPENDENCIES
- MY_IND_COLUMNS
- MY_IND_EXPRESSIONS
- MY_INDEXES
- MY_JOBS
- MY_OBJECTS
- MY_PROCEDURES
- MY_SCHEDULER_JOB_ARGS
- MY_SCHEDULER_JOBS
- MY_SCHEDULER_PROGRAM_ARGS
- MY_SEQUENCES
- MY_SOURCE
- MY_SYNONYMS
- MY_TAB_COL_STATISTICS
- MY_TAB_COLUMNS
- MY_TAB_COMMENTS
- MY_TAB_HISTOGRAMS
- MY_TAB_MODIFICATIONS
- MY_TAB_STATS_HISTORY
- MY_TAB_STATISTICS
- MY_TABLES
- MY_TABLESPACES
- MY_TRIGGERS
- MY_TYPE_ATTRS
- MY_TYPES
- MY_VIEWS
- NLS_DATABASE_PARAMETERS
- NLS_INSTANCE_PARAMETERS
- PG_AVAILABLE_EXTENSION_VERSIONS
- PG_AVAILABLE_EXTENSIONS
- PG_CONTROL_GROUP_CONFIG
- PG_CURSORS
- PG_EXT_STATS
- PG_GET_SENDERS_CATCHUP_TIME
- PG_GROUP
- PG_INDEXES
- PG_LOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_REPLICATION_SLOTS
- PG_RULES
- PG_RUNNING_XACTS
- PG_SESSION_IOSTAT
- PG_SETTINGS
- PG_SHARED_MEMORY_DETAIL
- PG_STATS
- PG_STAT_ACTIVITY
- PG_STAT_ACTIVITY_NG
- PG_STAT_ALL_INDEXES
- PG_STAT_ALL_TABLES
- PG_STAT_BAD_BLOCK
- PG_STAT_BGWRITER
- PG_STAT_DATABASE
- PG_STAT_DATABASE_CONFLICTS
- PG_STAT_REPLICATION
- PG_STAT_SYS_INDEXES
- PG_STAT_SYS_TABLES
- PG_STAT_USER_FUNCTIONS
- PG_STAT_USER_INDEXES
- PG_STAT_USER_TABLES
- PG_STAT_XACT_ALL_TABLES
- PG_STAT_XACT_SYS_TABLES
- PG_STAT_XACT_USER_FUNCTIONS
- PG_STAT_XACT_USER_TABLES
- PG_STATIO_ALL_INDEXES
- PG_STATIO_ALL_SEQUENCES
- PG_STATIO_ALL_TABLES
- PG_STATIO_SYS_INDEXES
- PG_STATIO_SYS_SEQUENCES
- PG_STATIO_SYS_TABLES
- PG_STATIO_USER_INDEXES
- PG_STATIO_USER_SEQUENCES
- PG_STATIO_USER_TABLES
- PG_TABLES
- PG_THREAD_WAIT_STATUS
- PG_TIMEZONE_ABBREVS
- PG_TIMEZONE_NAMES
- PG_TOTAL_MEMORY_DETAIL
- PG_TOTAL_USER_RESOURCE_INFO
- PG_TOTAL_USER_RESOURCE_INFO_OID
- PG_VARIABLE_INFO
- PG_VIEWS
- PGXC_GET_STAT_ALL_TABLES
- PGXC_GET_TABLE_SKEWNESS
- PGXC_NODE_ENV
- PGXC_OS_THREADS
- PGXC_PREPARED_XACTS
- PGXC_RUNNING_XACTS
- PGXC_STAT_ACTIVITY
- PGXC_STAT_BAD_BLOCK
- PGXC_SQL_COUNT
- PGXC_THREAD_WAIT_STATUS
- PGXC_TOTAL_MEMORY_DETAIL
- PGXC_VARIABLE_INFO
- PLAN_TABLE
- PV_FILE_STAT
- PV_INSTANCE_TIME
- PV_OS_RUN_INFO
- PV_REDO_STAT
- PV_SESSION_MEMORY
- PV_SESSION_MEMORY_CONTEXT
- PV_SESSION_MEMORY_DETAIL
- PV_SESSION_STAT
- PV_SESSION_TIME
- PV_THREAD_MEMORY_CONTEXT
- PV_TOTAL_MEMORY_DETAIL
- SYS_DUMMY
- V_INSTANCE
- V_MYSTAT
- V_SESSION
- V$GLOBAL_OPEN_CURSOR
- V$GLOBAL_TRANSACTION
- V$LOCK
- V$NLS_PARAMETERS
- V$OPEN_CURSOR
- V$SESSION_WAIT
- V$SYSSTAT
- V$SYSTEM_EVENT
- V$VERSION
-
分区表
-
Schema
- Information Schema
-
DBE_PERF Schema
- OS
- Instance
- File
-
Object
- STAT_USER_TABLES
- SUMMARY_STAT_USER_TABLES
- GLOBAL_STAT_USER_TABLES
- STAT_USER_INDEXES
- SUMMARY_STAT_USER_INDEXES
- GLOBAL_STAT_USER_INDEXES
- STAT_SYS_TABLES
- SUMMARY_STAT_SYS_TABLES
- GLOBAL_STAT_SYS_TABLES
- STAT_SYS_INDEXES
- SUMMARY_STAT_SYS_INDEXES
- GLOBAL_STAT_SYS_INDEXES
- STAT_ALL_TABLES
- SUMMARY_STAT_ALL_TABLES
- GLOBAL_STAT_ALL_TABLES
- STAT_ALL_INDEXES
- SUMMARY_STAT_ALL_INDEXES
- GLOBAL_STAT_ALL_INDEXES
- STAT_DATABASE
- SUMMARY_STAT_DATABASE
- GLOBAL_STAT_DATABASE
- STAT_DATABASE_CONFLICTS
- SUMMARY_STAT_DATABASE_CONFLICTS
- GLOBAL_STAT_DATABASE_CONFLICTS
- STAT_XACT_ALL_TABLES
- SUMMARY_STAT_XACT_ALL_TABLES
- GLOBAL_STAT_XACT_ALL_TABLES
- STAT_XACT_SYS_TABLES
- SUMMARY_STAT_XACT_SYS_TABLES
- GLOBAL_STAT_XACT_SYS_TABLES
- STAT_XACT_USER_TABLES
- SUMMARY_STAT_XACT_USER_TABLES
- GLOBAL_STAT_XACT_USER_TABLES
- STAT_XACT_USER_FUNCTIONS
- SUMMARY_STAT_XACT_USER_FUNCTIONS
- GLOBAL_STAT_XACT_USER_FUNCTIONS
- STAT_BAD_BLOCK
- SUMMARY_STAT_BAD_BLOCK
- GLOBAL_STAT_BAD_BLOCK
- STAT_USER_FUNCTIONS
- SUMMARY_STAT_USER_FUNCTIONS
- GLOBAL_STAT_USER_FUNCTIONS
- Workload
-
Session/Thread
- SESSION_STAT
- GLOBAL_SESSION_STAT
- SESSION_TIME
- GLOBAL_SESSION_TIME
- SESSION_MEMORY
- GLOBAL_SESSION_MEMORY
- SESSION_MEMORY_DETAIL
- GLOBAL_SESSION_MEMORY_DETAIL
- SESSION_STAT_ACTIVITY
- GLOBAL_SESSION_STAT_ACTIVITY
- THREAD_WAIT_STATUS
- GLOBAL_THREAD_WAIT_STATUS
- LOCAL_THREADPOOL_STATUS
- GLOBAL_THREADPOOL_STATUS
- SESSION_CPU_RUNTIME
- SESSION_MEMORY_RUNTIME
- STATEMENT_IOSTAT_COMPLEX_RUNTIME
- LOCAL_ACTIVE_SESSION
- GLOBAL_ACTIVE_SESSION
- Transaction
-
Query
- STATEMENT
- SUMMARY_STATEMENT
- STATEMENT_COUNT
- GLOBAL_STATEMENT_COUNT
- SUMMARY_STATEMENT_COUNT
- GLOBAL_STATEMENT_COMPLEX_HISTORY
- GLOBAL_STATEMENT_COMPLEX_HISTORY_TABLE
- GLOBAL_STATEMENT_COMPLEX_RUNTIME
- STATEMENT_RESPONSETIME_PERCENTILE
- STATEMENT_WLMSTAT_COMPLEX_RUNTIME
- STATEMENT_HISTORY
- GLOBAL_SESSION_SQL_MEMORY
- SESSION_SQL_MEMORY
-
Cache/IO
- STATIO_USER_TABLES
- SUMMARY_STATIO_USER_TABLES
- GLOBAL_STATIO_USER_TABLES
- STATIO_USER_INDEXES
- SUMMARY_STATIO_USER_INDEXES
- GLOBAL_STATIO_USER_INDEXES
- STATIO_USER_SEQUENCES
- SUMMARY_STATIO_USER_SEQUENCES
- GLOBAL_STATIO_USER_SEQUENCES
- STATIO_SYS_TABLES
- SUMMARY_STATIO_SYS_TABLES
- GLOBAL_STATIO_SYS_TABLES
- STATIO_SYS_INDEXES
- SUMMARY_STATIO_SYS_INDEXES
- GLOBAL_STATIO_SYS_INDEXES
- STATIO_SYS_SEQUENCES
- SUMMARY_STATIO_SYS_SEQUENCES
- GLOBAL_STATIO_SYS_SEQUENCES
- STATIO_ALL_TABLES
- SUMMARY_STATIO_ALL_TABLES
- GLOBAL_STATIO_ALL_TABLES
- STATIO_ALL_INDEXES
- SUMMARY_STATIO_ALL_INDEXES
- GLOBAL_STATIO_ALL_INDEXES
- STATIO_ALL_SEQUENCES
- SUMMARY_STATIO_ALL_SEQUENCES
- GLOBAL_STATIO_ALL_SEQUENCES
- Comm
-
Utility
- REPLICATION_STAT
- GLOBAL_REPLICATION_STAT
- REPLICATION_SLOTS
- GLOBAL_REPLICATION_SLOTS
- BGWRITER_STAT
- GLOBAL_BGWRITER_STAT
- POOLER_STATUS
- GLOBAL_COMM_CHECK_CONNECTION_STATUS
- GLOBAL_CKPT_STATUS
- GLOBAL_DOUBLE_WRITE_STATUS
- GLOBAL_PAGEWRITER_STATUS
- GLOBAL_POOLER_STATUS
- GLOBAL_RECORD_RESET_TIME
- GLOBAL_REDO_STATUS
- GLOBAL_RECOVERY_STATUS
- CLASS_VITAL_INFO
- USER_LOGIN
- SUMMARY_USER_LOGIN
- GLOBAL_GET_BGWRITER_STATUS
- GLOBAL_SINGLE_FLUSH_DW_STATUS
- GLOBAL_CANDIDATE_STATUS
- PARALLEL_DECODE_STATUS
- GLOBAL_PARALLEL_DECODE_STATUS
- PARALLEL_DECODE_THREAD_INFO
- GLOBAL_PARALLEL_DECODE_THREAD_INFO
- GLOBAL_ADIO_COMPLETER_STATUS
- GLOBAL_AIO_SLOT_USAGE_STATUS
- Lock
- Wait Events
- Configuration
- Operator
- Workload Manager
- Global Plancache
- RTO & RPO
- AI Watchdog
- Trace Function
- 废弃
-
DBE_SQL_UTIL Schema
- DBE_SQL_UTIL.create_hint_sql_patch
- DBE_SQL_UTIL.create_abort_sql_patch
- DBE_SQL_UTIL.drop_sql_patch
- DBE_SQL_UTIL.enable_sql_patch
- DBE_SQL_UTIL.disable_sql_patch
- DBE_SQL_UTIL.show_sql_patch
- DBE_SQL_UTIL.create_hint_sql_patch
- DBE_SQL_UTIL.create_abort_sql_patch
- DBE_SQL_UTIL.create_remote_hint_sql_patch
- DBE_SQL_UTIL.create_remote_abort_sql_patch
- DBE_SQL_UTIL.drop_remote_sql_patch
- DBE_SQL_UTIL.enable_remote_sql_patch
- DBE_SQL_UTIL.disable_remote_sql_patch
-
DBE_PLDEBUGGER Schema
- DBE_PLDEBUGGER.turn_on
- DBE_PLDEBUGGER.turn_off
- DBE_PLDEBUGGER.local_debug_server_info
- DBE_PLDEBUGGER.attach
- DBE_PLDEBUGGER.info_locals
- DBE_PLDEBUGGER.next
- DBE_PLDEBUGGER.continue
- DBE_PLDEBUGGER.abort
- DBE_PLDEBUGGER.print_var
- DBE_PLDEBUGGER.info_code
- DBE_PLDEBUGGER.step
- DBE_PLDEBUGGER.add_breakpoint
- DBE_PLDEBUGGER.delete_breakpoint
- DBE_PLDEBUGGER.info_breakpoints
- DBE_PLDEBUGGER.backtrace
- DBE_PLDEBUGGER.enable_breakpoint
- DBE_PLDEBUGGER.disable_breakpoint
- DBE_PLDEBUGGER.finish
- DBE_PLDEBUGGER.set_var
- DBE_PLDEBUGGER.backtrace
- DBE_PLDEBUGGER.error_end
- DBE_PLDEBUGGER.error_info_locals
- DBE_PLDEVELOPER
-
配置运行参数
- 查看参数
- 设置参数
-
GUC参数说明
- GUC使用说明
- 文件位置
- 连接和认证
- 资源消耗
- 数据并行导入导出
- 预写式日志
- 双机复制
- 查询规划
- 错误报告和日志
- 告警上报
- 运行时统计
- 负载管理
- 自动清理
- 客户端连接缺省设置
- 锁管理
- 版本和平台兼容性
- 容错性
- 连接池参数
- 集群事务
- 双集群复制参数
- 开发人员选项
- 审计
- 事务监控
- CM相关参数
- GTM相关参数
- 升级参数
- 其它选项
- 等待事件
- Query
- 系统性能快照
- 黑匣子相关参数
- 安全配置
- HyperLogLog
- 用户自定义函数
- 定时任务
- 线程池
- 备份恢复
- Undo
- DCF参数设置
- 闪回相关参数
- 回滚相关参数
- AI特性
- Global SysCache参数
- 分布式备机读参数
- 备机数据修复
- 账本数据库参数
- 在线创建索引
- 在线DDL
- 数据生命周期管理-OLTP表压缩
- session级事务下推及相关参数
- Enhanced Toast
- 预留参数
-
FAQ
- GaussDB单表支持的最大列数?
- 如何查询分区表分区信息和索引信息?
- 什么是OID?
- 什么是UDF?
- GaussDB都有哪些通配符,如何使用?
- 数据库对象名称的长度是否有限制?
- 如何查看某张表创建时间?
- 如何并行创建索引?
- 如何创建自动递增列?
- GaussDB数据库能否通过SQL查询内存的使用情况?
- LIMIT 2、LIMIT 2,3、LIMIT 2 OFFSET 3的区别?
- 如何创建默认为当前时间的列?
- 如何判断字段是否为NULL?
- 如何获取当前连接数据库的用户名?
- 如何查询两个时间的时间差?
- SQL语言分为哪几类?
- 触发器的作用是什么?
- 数据库事务正确执行的四个特性是什么?
- GaussDB的DROP、TRUNCATE、DELETE这三种删除数据的方式主要区别是什么?
- GaussDB数据库一个汉字占几个字节?
- 唯一约束和唯一索引有什么区别?
- GaussDB如何创建弱口令?
- 什么是脏读、幻读、不可重复读?
- 什么是MVCC?
- 日期/时间类型哪些带时区,哪些不带时区?
- count(*)和count(column)的区别是什么?
- 空字符串和NULL的关系?
- WAL日志是什么,日志文件路径是什么?
- GaussDB中模式、用户和角色如何理解?
- GaussDB支持动态内存管理吗?
- 以pg_temp或pg_toast_temp开头的SCHEMA是什么?
- 函数和存储过程的区别是什么?
- 为什么REVOKE某个用户的CONNECT ON DATABASE权限后还可以登录数据库?
- 全表关联UPDATE时,如何提升效率?
- 使用LIKE进行模糊查找时如何忽略大小写?
- 在使用了字符串处理函数后查询就不使用索引,该如何处理?
- 为什么查询中无法识别表名或者列名?
- 如果建表时没有指定分布列,数据会怎么存储?
- 什么是数据倾斜,如何检查?
- 复制表适用于哪些场景?
-
开发指南(集中式_V2.0-8.x)
- 数据库系统概述
- 数据库安全
- 数据库使用入门
- 开发设计建议
-
应用程序开发教程
- GaussDB应用程序开发教程概述
- 开发规范
- 获取驱动包
-
基于JDBC开发
- 开发流程
- 开发步骤
- 典型应用开发示例
-
JDBC接口参考
- java.sql.Connection
- java.sql.CallableStatement
- java.sql.DatabaseMetaData
- java.sql.Driver
- java.sql.PreparedStatement
- java.sql.ResultSet
- java.sql.ResultSetMetaData
- java.sql.Statement
- javax.sql.ConnectionPoolDataSource
- javax.sql.DataSource
- javax.sql.PooledConnection
- javax.naming.Context
- javax.naming.spi.InitialContextFactory
- CopyManager
- PGReplicationConnection
- PGReplicationStream
- ChainedStreamBuilder
- ChainedCommonStreamBuilder
- PGobject
- 基于ODBC开发
- 基于libpq开发
- 基于Psycopg开发
- 基于Go驱动开发
- 基于ecpg开发
- 兼容性参考
- 附录
-
SQL调优指南
- Query执行流程
- SQL执行计划介绍
- 调优流程
- 更新统计信息
- 审视和修改表定义
- 典型SQL调优点
- 经验总结:SQL语句改写规则
- SQL调优关键参数调整
-
使用Plan Hint进行调优
- Plan Hint调优概述
- 指定Hint所处于的查询块Queryblock
- Hint可以指定表的查询块名和schema名
- Join顺序的Hint
- Join方式的Hint
- 行数的Hint
- Stream方式的Hint
- Scan方式的Hint
- 子链接块名的Hint
- Hint的错误、冲突及告警
- 优化器GUC参数的Hint
- Custom Plan和Generic Plan选择的Hint
- 指定子查询不展开的Hint
- 指定不使用全局计划缓存的Hint
- 同层参数化路径的Hint
- 设置慢SQL管控规则的Hint
- 自适应计划选择的Hint
- 为子计划结果进行物化的Hint
- 支持bitmapscan的Hint
- 连接时内表物化的Hint
- 指定agg算法的Hint
- 查询改写的Hint
- Outline Hint
- 指定Any子链接提升的Hint
- 指定扫描并行度的Hint
- 指定是否使用Semi Join的Hint
- 指定Stream Hashagg优化方式的Hint
- 指定是否使用minmax优化的hint
- 指定是否使用Partition-wise Scan优化的hint
- 使用向量化执行引擎进行调优
- PLAN TRACE使用介绍
- 使用SQL PATCH进行调优
- 实际调优案例
-
SQL参考
- GaussDB SQL
- 关键字
- 数据类型
- 字符集与字符序
- 常量与宏
-
函数和操作符
- 逻辑操作符
- 比较操作符
- 字符处理函数和操作符
- 二进制字符串函数和操作符
- 位串函数和操作符
- 模式匹配操作符
- 数字操作函数和操作符
- 时间和日期处理函数和操作符
- 类型转换函数
- 几何函数和操作符
- 网络地址函数和操作符
- 文本检索函数和操作符
- JSON/JSONB函数和操作符
- HLL函数和操作符
- SEQUENCE函数
- 数组函数和操作符
- 范围函数和操作符
- 聚集函数
- 窗口函数
- 安全函数
- 账本数据库的函数
- 密态函数和操作符
- 返回集合的函数
- 条件表达式函数
- 系统信息函数
- 系统管理函数
- SPM计划管理函数
- 统计信息函数
- 触发器函数
- HashFunc函数
- 提示信息函数
- 全局临时表函数
- 故障注入系统函数
- AI特性函数
- 敏感数据发现函数
- 动态数据脱敏函数
- 层次递归查询函数
- 其他系统函数
- 内部函数
- Global SysCache特性函数
- 数据损坏检测修复函数
- XML类型函数
- XMLTYPE类型函数
- Global Plsql Cache特性函数
- 数据透视函数
- 通用标识符函数
- SQL限流函数
- 向量数据库函数与操作符
- 多租数据库函数
- 废弃函数
- 表达式
- 伪列
- 类型转换
- 系统操作
- 事务控制
-
SQL语法
- SQL语法格式说明
- DCL语法一览表
- DDL语法一览表
- DML语法一览表
- 其他语法一览表
- Online DDL及其操作
-
A
- ABORT
- ALTER AGGREGATE
- ALTER AUDIT POLICY
- ALTER COLUMN ENCRYPTION KEY
- ALTER DATABASE
- ALTER DATABASE LINK
- ALTER DEFAULT PRIVILEGES
- ALTER DIRECTORY
- ALTER EVENT
- ALTER EXTENSION
- ALTER FOREIGN DATA WRAPPER
- ALTER FOREIGN TABLE
- ALTER FUNCTION
- ALTER GLOBAL CONFIGURATION
- ALTER GROUP
- ALTER INDEX
- ALTER LANGUAGE
- ALTER MASKING POLICY
- ALTER MATERIALIZED VIEW
- ALTER OPERATOR
- ALTER PACKAGE
- ALTER PLUGGABLE DATABASE
- ALTER PROCEDURE
- ALTER RESOURCE LABEL
- ALTER RESOURCE POOL
- ALTER ROLE
- ALTER ROW LEVEL SECURITY POLICY
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- ALTER SYNONYM
- ALTER SYSTEM KILL SESSION
- ALTER SYSTEM SET
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TABLE SUBPARTITION
- ALTER TABLESPACE
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER USER MAPPING
- ALTER VIEW
- ANALYZE | ANALYSE
- B
-
C
- CALL
- CHECKPOINT
- CLEAN CONNECTION
- CLOSE
- CLUSTER
- COMMENT
- COMMIT | END
- COMMIT PREPARED
- COPY
- CREATE AGGREGATE
- CREATE AUDIT POLICY
- CREATE CAST
- CREATE CLIENT MASTER KEY
- CREATE COLUMN ENCRYPTION KEY
- CREATE CONVERSION
- CREATE DATABASE
- CREATE DATABASE LINK
- CREATE DIRECTORY
- CREATE EVENT
- CREATE EXTENSION
- CREATE FOREIGN DATA WRAPPER
- CREATE FOREIGN TABLE
- CREATE FUNCTION
- CREATE GLOBAL INDEX
- CREATE GROUP
- CREATE INCREMENTAL MATERIALIZED VIEW
- CREATE INDEX
- CREATE LANGUAGE
- CREATE MASKING POLICY
- CREATE MATERIALIZED VIEW
- CREATE MODEL
- CREATE OPERATOR
- CREATE OPERATOR CLASS
- CREATE PACKAGE
- CREATE PLUGGABLE DATABASE
- CREATE PROCEDURE
- CREATE RESOURCE LABEL
- CREATE RESOURCE POOL
- CREATE ROLE
- CREATE ROW LEVEL SECURITY POLICY
- CREATE RULE
- CREATE SCHEMA
- CREATE SECURITY LABEL
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TABLE PARTITION | SUBPARTITION AS
- CREATE TABLESPACE
- CREATE TABLE SUBPARTITION
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE USER MAPPING
- CREATE VIEW
- CREATE WEAK PASSWORD DICTIONARY
- CURSOR
-
D
- DEALLOCATE
- DECLARE
- DELETE
- DO
- DROP AGGREGATE
- DROP AUDIT POLICY
- DROP CAST
- DROP CLIENT MASTER KEY
- DROP COLUMN ENCRYPTION KEY
- DROP DATABASE
- DROP DATABASE LINK
- DROP DIRECTORY
- DROP EVENT
- DROP EXTENSION
- DROP FOREIGN DATA WRAPPER
- DROP FOREIGN TABLE
- DROP FUNCTION
- DROP GLOBAL CONFIGURATION
- DROP GROUP
- DROP INDEX
- DROP LANGUAGE
- DROP MASKING POLICY
- DROP MATERIALIZED VIEW
- DROP MODEL
- DROP OPERATOR
- DROP OWNED
- DROP PACKAGE
- DROP PLUGGABLE DATABASE INCLUDING DATAFILES
- DROP PROCEDURE
- DROP RESOURCE LABEL
- DROP RESOURCE POOL
- DROP ROLE
- DROP ROW LEVEL SECURITY POLICY
- DROP RULE
- DROP SCHEMA
- DROP SECURITY LABEL
- DROP SEQUENCE
- DROP SERVER
- DROP SYNONYM
- DROP TABLE
- DROP TABLESPACE
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP USER MAPPING
- DROP VIEW
- DROP WEAK PASSWORD DICTIONARY
- E
- F
- G
- I
- L
- M
- P
- R
- S
- T
- U
- V
- 附录
- 最佳实践
- 用户自定义函数
- 存储过程
- 自治事务
-
系统表和系统视图
- 系统表和系统视图概述
-
系统表
- 分区表
- 负载管理
- OLTP表压缩
- 密态等值查询
- 通信
- 账本数据库
- SPM计划管理
- AI
- 审计
- 用户和权限管理
- 连接和认证
- 动态脱敏
- DATABASE LINK
- 物化视图
- 逻辑解码
- 多租数据库
-
其他系统表
- GS_ASP
- gs_copy_summary
- PGXC_COPY_ERROR_LOG
- GS_DEP_SOURCE
- GS_DEPENDENCIES
- GS_DEPENDENCIES_OBJ
- GS_GLOBAL_CONFIG
- GS_IMCV
- GS_JOB_ARGUMENT
- GS_JOB_ATTRIBUTE
- GS_PACKAGE
- GS_PLAN_TRACE
- GS_POLICY_LABEL
- GS_RECYCLEBIN
- GS_SECURITY_LABEL
- GS_SQL_PATCH
- GS_STATISTIC_EXT_HISTORY
- GS_STATISTIC_HISTORY
- GS_TABLESTATS_HISTORY
- GS_TS_DICT_DEFINITION
- GS_TXN_SNAPSHOT
- GS_UID
- GS_WORKLOAD_RULE
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_CAST
- PG_CLASS
- PG_COLLATION
- PG_CONSTRAINT
- PG_CONVERSION
- PG_DATABASE
- PG_DEPEND
- PG_DESCRIPTION
- PG_DIRECTORY
- PG_ENUM
- PG_EXTENSION
- PG_FOREIGN_DATA_WRAPPER
- PG_FOREIGN_SERVER
- PG_FOREIGN_TABLE
- PG_HASHBUCKET
- PG_INDEX
- PG_INHERITS
- PG_JOB
- PG_JOB_PROC
- PG_LANGUAGE
- PG_LARGEOBJECT
- PG_LARGEOBJECT_METADATA
- PG_NAMESPACE
- PG_OBJECT
- PG_OPCLASS
- PG_OPERATOR
- PG_OPFAMILY
- PG_PLTEMPLATE
- PG_PROC
- PG_RANGE
- PG_REPLICATION_ORIGIN
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_SET
- PG_STATISTIC
- PG_STATISTIC_EXT
- PG_SYNONYM
- PG_TABLESPACE
- PG_TRIGGER
- PG_TS_CONFIG
- PG_TS_CONFIG_MAP
- PG_TS_DICT
- PG_TS_PARSER
- PG_TS_TEMPLATE
- PG_TYPE
- PGXC_CLASS
- PGXC_GROUP
- PGXC_SLICE
- PLAN_TABLE_DATA
- STATEMENT_HISTORY
- STREAMING_STREAM
- STREAMING_CONT_QUERY
-
系统视图
-
分区表
- ADM_IND_PARTITIONS
- ADM_IND_SUBPARTITIONS
- ADM_PART_COL_STATISTICS
- ADM_PART_INDEXES
- ADM_PART_TABLES
- ADM_SUBPART_COL_STATISTICS
- ADM_SUBPART_KEY_COLUMNS
- ADM_TAB_SUBPARTITIONS
- ADM_TAB_PARTITIONS
- DB_IND_PARTITIONS
- DB_IND_SUBPARTITIONS
- DB_PART_COL_STATISTICS
- DB_PART_INDEXES
- DB_PART_KEY_COLUMNS
- DB_PART_TABLES
- DB_SUBPART_COL_STATISTICS
- DB_SUBPART_KEY_COLUMNS
- DB_TAB_PARTITIONS
- DB_TAB_SUBPARTITIONS
- MY_IND_PARTITIONS
- MY_IND_SUBPARTITIONS
- MY_PART_COL_STATISTICS
- MY_PART_INDEXES
- MY_PART_KEY_COLUMNS
- MY_PART_TABLES
- MY_SUBPART_COL_STATISTICS
- MY_SUBPART_KEY_COLUMNS
- MY_TAB_PARTITIONS
- MY_TAB_SUBPARTITIONS
- GS_STATIO_ALL_PARTITIONS
- GS_STAT_XACT_ALL_PARTITIONS
- GS_STAT_ALL_PARTITIONS
- 负载管理
- OLTP表压缩
- 通信
- 段页式存储
- SPM计划管理
- 审计
-
用户和权限管理
- ADM_COL_PRIVS
- ADM_ROLE_PRIVS
- ADM_ROLES
- ADM_SYS_PRIVS
- ADM_TAB_PRIVS
- ADM_USERS
- DB_COL_PRIVS
- DB_DIRECTORIES
- DB_TAB_PRIVS
- DB_USERS
- GS_DB_PRIVILEGES
- GS_LABELS
- MY_COL_PRIVS
- MY_ROLE_PRIVS
- MY_SYS_PRIVS
- PG_RLSPOLICIES
- GS_RLSPOLICIES
- PG_ROLES
- GS_ROLES
- PG_SECLABELS
- GS_SECLABELS
- PG_SHADOW
- GS_SHADOW
- PG_USER
- GS_USER
- PG_USER_MAPPINGS
- ROLE_ROLE_PRIVS
- ROLE_SYS_PRIVS
- ROLE_TAB_PRIVS
- 动态脱敏
- DATABASE LINK
- 物化视图
- 多租数据库
-
其他系统视图
- ADM_ARGUMENTS
- ADM_COL_COMMENTS
- ADM_COLL_TYPES
- ADM_CONS_COLUMNS
- ADM_CONSTRAINTS
- ADM_DATA_FILES
- ADM_DEPENDENCIES
- ADM_DIRECTORIES
- ADM_HIST_SNAPSHOT
- ADM_HIST_SQL_PLAN
- ADM_HIST_SQLSTAT
- ADM_HIST_SQLTEXT
- ADM_IND_COLUMNS
- ADM_IND_EXPRESSIONS
- ADM_INDEXES
- ADM_OBJECTS
- ADM_PROCEDURES
- ADM_RECYCLEBIN
- ADM_SCHEDULER_JOB_ARGS
- ADM_SCHEDULER_JOBS
- ADM_SCHEDULER_PROGRAM_ARGS
- ADM_SCHEDULER_PROGRAMS
- ADM_SCHEDULER_RUNNING_JOBS
- ADM_SEGMENTS
- ADM_SEQUENCES
- ADM_SOURCE
- ADM_SYNONYMS
- ADM_TAB_COL_STATISTICS
- ADM_TAB_COLS
- ADM_TAB_COLUMNS
- ADM_TAB_COMMENTS
- ADM_TAB_HISTOGRAMS
- ADM_TAB_STATISTICS
- ADM_TAB_STATS_HISTORY
- ADM_TABLES
- ADM_TABLESPACES
- ADM_TRIGGERS
- ADM_TYPE_ATTRS
- ADM_TYPES
- ADM_VIEWS
- DB_ARGUMENTS
- DB_ALL_TABLES
- DB_COL_COMMENTS
- DB_COLL_TYPES
- DB_CONS_COLUMNS
- DB_CONSTRAINTS
- DB_DEPENDENCIES
- DB_ERRORS
- DB_IND_COLUMNS
- DB_IND_EXPRESSIONS
- DB_INDEXES
- DB_OBJECTS
- DB_PROCEDURES
- DB_SCHEDULER_JOB_ARGS
- DB_SCHEDULER_PROGRAM_ARGS
- DB_SEQUENCES
- DB_SOURCE
- DB_SYNONYMS
- DB_TAB_COL_STATISTICS
- DB_TAB_COLUMNS
- DB_TAB_COMMENTS
- DB_TAB_HISTOGRAMS
- DB_TAB_MODIFICATIONS
- DB_TAB_STATS_HISTORY
- DB_TABLES
- DB_TRIGGERS
- DB_TYPES
- DB_VIEWS
- DICT
- DICTIONARY
- DUAL
- DV_SESSIONS
- DV_SESSION_LONGOPS
- GS_ALL_CONTROL_GROUP_INFO
- GS_ALL_PREPARED_STATEMENTS
- GS_COMM_PROXY_THREAD_STATUS
- GS_FILE_STAT
- GS_GET_CONTROL_GROUP_INFO
- GS_GLC_MEMORY_DETAIL
- GS_GLOBAL_ARCHIVE_STATUS
- GS_GSC_MEMORY_DETAIL
- GS_IMCU_SLOT_STATUS
- GS_IMCV_STATUS
- GS_INSTANCE_TIME
- GS_LOGICALSTANDBY_SKIP
- GS_LOGICALSTANDBY_SKIP_TRANSACTION
- GS_LSC_MEMORY_DETAIL
- GS_MY_PLAN_TRACE
- GS_OS_RUN_INFO
- GS_REDO_STAT
- GS_SESSION_ALL_SETTINGS
- GS_SESSION_MEMORY
- GS_SESSION_MEMORY_CONTEXT
- GS_SESSION_MEMORY_DETAIL
- GS_SESSION_STAT
- GS_SESSION_TIME
- GS_SHARED_MEMORY_DETAIL
- GS_SQL_COUNT
- GS_THREAD_MEMORY_CONTEXT
- GS_TOTAL_MEMORY_DETAIL
- GS_TOTAL_NODEGROUP_MEMORY_DETAIL
- GS_WORKLOAD_RULE_STAT
- GV_INSTANCE
- GV_SESSION
- MPP_TABLES
- MY_AUDIT_TRAIL
- MY_COL_COMMENTS
- MY_COLL_TYPES
- MY_CONS_COLUMNS
- MY_CONSTRAINTS
- MY_DEPENDENCIES
- MY_ERRORS
- MY_IND_COLUMNS
- MY_IND_EXPRESSIONS
- MY_INDEXES
- MY_JOBS
- MY_OBJECTS
- MY_PROCEDURES
- MY_RECYCLEBIN
- MY_SCHEDULER_JOB_ARGS
- MY_SCHEDULER_JOBS
- MY_SCHEDULER_PROGRAM_ARGS
- MY_SEQUENCES
- MY_SOURCE
- MY_SYNONYMS
- MY_TAB_COL_STATISTICS
- MY_TAB_COLUMNS
- MY_TAB_COMMENTS
- MY_TAB_HISTOGRAMS
- MY_TAB_MODIFICATIONS
- MY_TAB_STATS_HISTORY
- MY_TAB_STATISTICS
- MY_TABLES
- MY_TABLESPACES
- MY_TRIGGERS
- MY_TYPE_ATTRS
- MY_TYPES
- MY_VIEWS
- NLS_DATABASE_PARAMETERS
- NLS_INSTANCE_PARAMETERS
- PG_AVAILABLE_EXTENSION_VERSIONS
- PG_AVAILABLE_EXTENSIONS
- PG_CONTROL_GROUP_CONFIG
- PG_CURSORS
- PG_EXT_STATS
- PG_GET_SENDERS_CATCHUP_TIME
- PG_GROUP
- PG_GTT_RELSTATS
- PG_GTT_STATS
- PG_GTT_ATTACHED_PIDS
- PG_INDEXES
- PG_LOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_REPLICATION_ORIGIN_STATUS
- PG_REPLICATION_SLOTS
- PG_RULES
- PG_RUNNING_XACTS
- PG_SESSION_IOSTAT
- PG_SETTINGS
- PG_STATS
- PG_STAT_ACTIVITY
- PG_STAT_ACTIVITY_NG
- PG_STAT_ALL_INDEXES
- PG_STAT_ALL_TABLES
- PG_STAT_BAD_BLOCK
- PG_STAT_BGWRITER
- PG_STAT_DATABASE
- PG_STAT_DATABASE_CONFLICTS
- PG_STAT_REPLICATION
- PG_STAT_SYS_INDEXES
- PG_STAT_SYS_TABLES
- PG_STAT_USER_FUNCTIONS
- PG_STAT_USER_INDEXES
- PG_STAT_USER_TABLES
- PG_STAT_XACT_ALL_TABLES
- PG_STAT_XACT_SYS_TABLES
- PG_STAT_XACT_USER_FUNCTIONS
- PG_STAT_XACT_USER_TABLES
- PG_STATIO_ALL_INDEXES
- PG_STATIO_ALL_SEQUENCES
- PG_STATIO_ALL_TABLES
- PG_STATIO_SYS_INDEXES
- PG_STATIO_SYS_SEQUENCES
- PG_STATIO_SYS_TABLES
- PG_STATIO_USER_INDEXES
- PG_STATIO_USER_SEQUENCES
- PG_STATIO_USER_TABLES
- PG_TABLES
- PG_THREAD_WAIT_STATUS
- PG_TIMEZONE_ABBREVS
- PG_TIMEZONE_NAMES
- PG_TOTAL_MEMORY_DETAIL
- PG_TOTAL_USER_RESOURCE_INFO
- PG_TOTAL_USER_RESOURCE_INFO_OID
- PG_VARIABLE_INFO
- PG_VIEWS
- PGXC_PREPARED_XACTS
- PGXC_THREAD_WAIT_STATUS
- PLAN_TABLE
- SYS_DUMMY
- V_INSTANCE
- V_MYSTAT
- V_SESSION
- V$GLOBAL_TRANSACTION
- V$LOCK
- V$NLS_PARAMETERS
- V$OPEN_CURSOR
- V$SESSION_WAIT
- V$SYSSTAT
- V$SYSTEM_EVENT
- V$VERSION
-
分区表
-
Schema
- Information Schema
-
DBE_PERF Schema
- OS
- Instance
- Memory
- File
-
Object
- STAT_USER_TABLES
- SUMMARY_STAT_USER_TABLES
- GLOBAL_STAT_USER_TABLES
- STAT_USER_INDEXES
- SUMMARY_STAT_USER_INDEXES
- GLOBAL_STAT_USER_INDEXES
- STAT_SYS_TABLES
- SUMMARY_STAT_SYS_TABLES
- GLOBAL_STAT_SYS_TABLES
- STAT_SYS_INDEXES
- SUMMARY_STAT_SYS_INDEXES
- GLOBAL_STAT_SYS_INDEXES
- STAT_ALL_TABLES
- SUMMARY_STAT_ALL_TABLES
- GLOBAL_STAT_ALL_TABLES
- STAT_ALL_INDEXES
- SUMMARY_STAT_ALL_INDEXES
- GLOBAL_STAT_ALL_INDEXES
- STAT_DATABASE
- SUMMARY_STAT_DATABASE
- GLOBAL_STAT_DATABASE
- STAT_DATABASE_CONFLICTS
- SUMMARY_STAT_DATABASE_CONFLICTS
- GLOBAL_STAT_DATABASE_CONFLICTS
- STAT_XACT_ALL_TABLES
- SUMMARY_STAT_XACT_ALL_TABLES
- GLOBAL_STAT_XACT_ALL_TABLES
- STAT_XACT_SYS_TABLES
- SUMMARY_STAT_XACT_SYS_TABLES
- GLOBAL_STAT_XACT_SYS_TABLES
- STAT_XACT_USER_TABLES
- SUMMARY_STAT_XACT_USER_TABLES
- GLOBAL_STAT_XACT_USER_TABLES
- STAT_XACT_USER_FUNCTIONS
- SUMMARY_STAT_XACT_USER_FUNCTIONS
- GLOBAL_STAT_XACT_USER_FUNCTIONS
- STAT_BAD_BLOCK
- SUMMARY_STAT_BAD_BLOCK
- GLOBAL_STAT_BAD_BLOCK
- STAT_USER_FUNCTIONS
- SUMMARY_STAT_USER_FUNCTIONS
- GLOBAL_STAT_USER_FUNCTIONS
- PDB Info
- Workload
-
Session/Thread
- SESSION_STAT
- GLOBAL_SESSION_STAT
- SESSION_TIME
- GLOBAL_SESSION_TIME
- SESSION_MEMORY
- GLOBAL_SESSION_MEMORY
- SESSION_MEMORY_DETAIL
- GLOBAL_SESSION_MEMORY_DETAIL
- SESSION_STAT_ACTIVITY
- GLOBAL_SESSION_STAT_ACTIVITY
- THREAD_WAIT_STATUS
- GLOBAL_THREAD_WAIT_STATUS
- LOCAL_THREADPOOL_STATUS
- GLOBAL_THREADPOOL_STATUS
- SESSION_CPU_RUNTIME
- SESSION_MEMORY_RUNTIME
- STATEMENT_IOSTAT_COMPLEX_RUNTIME
- LOCAL_ACTIVE_SESSION
- Transaction
-
Query
- STATEMENT
- SUMMARY_STATEMENT
- STATEMENT_COUNT
- GLOBAL_STATEMENT_COUNT
- SUMMARY_STATEMENT_COUNT
- GLOBAL_STATEMENT_COMPLEX_HISTORY
- GLOBAL_STATEMENT_COMPLEX_HISTORY_TABLE
- GLOBAL_STATEMENT_COMPLEX_RUNTIME
- STATEMENT_RESPONSETIME_PERCENTILE
- STATEMENT_USER_COMPLEX_HISTORY
- STATEMENT_COMPLEX_RUNTIME
- STATEMENT_COMPLEX_HISTORY_TABLE
- STATEMENT_COMPLEX_HISTORY
- STATEMENT_WLMSTAT_COMPLEX_RUNTIME
- STATEMENT_HISTORY
- GLOBAL_SLOW_QUERY_HISTORY
- GLOBAL_SLOW_QUERY_INFO
- SESSION_SQL_MEMORY
-
Cache/IO
- STATIO_USER_TABLES
- SUMMARY_STATIO_USER_TABLES
- GLOBAL_STATIO_USER_TABLES
- STATIO_USER_INDEXES
- SUMMARY_STATIO_USER_INDEXES
- GLOBAL_STATIO_USER_INDEXES
- STATIO_USER_SEQUENCES
- SUMMARY_STATIO_USER_SEQUENCES
- GLOBAL_STATIO_USER_SEQUENCES
- STATIO_SYS_TABLES
- SUMMARY_STATIO_SYS_TABLES
- GLOBAL_STATIO_SYS_TABLES
- STATIO_SYS_INDEXES
- SUMMARY_STATIO_SYS_INDEXES
- GLOBAL_STATIO_SYS_INDEXES
- STATIO_SYS_SEQUENCES
- SUMMARY_STATIO_SYS_SEQUENCES
- GLOBAL_STATIO_SYS_SEQUENCES
- STATIO_ALL_TABLES
- SUMMARY_STATIO_ALL_TABLES
- GLOBAL_STATIO_ALL_TABLES
- STATIO_ALL_INDEXES
- SUMMARY_STATIO_ALL_INDEXES
- GLOBAL_STATIO_ALL_INDEXES
- STATIO_ALL_SEQUENCES
- SUMMARY_STATIO_ALL_SEQUENCES
- GLOBAL_STATIO_ALL_SEQUENCES
-
Utility
- REPLICATION_STAT
- GLOBAL_REPLICATION_STAT
- REPLICATION_SLOTS
- GLOBAL_REPLICATION_SLOTS
- BGWRITER_STAT
- GLOBAL_BGWRITER_STAT
- GLOBAL_CKPT_STATUS
- GLOBAL_DOUBLE_WRITE_STATUS
- GLOBAL_PAGEWRITER_STATUS
- GLOBAL_RECORD_RESET_TIME
- GLOBAL_REDO_STATUS
- GLOBAL_RECOVERY_STATUS
- CLASS_VITAL_INFO
- USER_LOGIN
- SUMMARY_USER_LOGIN
- GLOBAL_SINGLE_FLUSH_DW_STATUS
- GLOBAL_CANDIDATE_STATUS
- PARALLEL_DECODE_STATUS
- GLOBAL_PARALLEL_DECODE_STATUS
- PARALLEL_DECODE_THREAD_INFO
- GLOBAL_PARALLEL_DECODE_THREAD_INFO
- GLOBAL_ADIO_COMPLETER_STATUS
- GLOBAL_AIO_SLOT_USAGE_STATUS
- Lock
- Wait Events
- Configuration
- Operator
- Workload Manager
- Global Plancache
- RTO & RPO
- AI Watchdog
- Trace Function
-
DBE_PLDEBUGGER Schema
- DBE_PLDEBUGGER.turn_on
- DBE_PLDEBUGGER.turn_off
- DBE_PLDEBUGGER.local_debug_server_info
- DBE_PLDEBUGGER.attach
- DBE_PLDEBUGGER.info_locals
- DBE_PLDEBUGGER.next
- DBE_PLDEBUGGER.continue
- DBE_PLDEBUGGER.abort
- DBE_PLDEBUGGER.print_var
- DBE_PLDEBUGGER.info_code
- DBE_PLDEBUGGER.step
- DBE_PLDEBUGGER.add_breakpoint
- DBE_PLDEBUGGER.delete_breakpoint
- DBE_PLDEBUGGER.info_breakpoints
- DBE_PLDEBUGGER.backtrace
- DBE_PLDEBUGGER.enable_breakpoint
- DBE_PLDEBUGGER.disable_breakpoint
- DBE_PLDEBUGGER.finish
- DBE_PLDEBUGGER.set_var
- DBE_PLDEBUGGER.error_backtrace
- DBE_PLDEBUGGER.error_end
- DBE_PLDEBUGGER.error_info_locals
- DB4AI Schema
- DBE_PLDEVELOPER
- DBE_SQL_UTIL Schema
-
配置运行参数
- 查看参数
- 设置参数
-
GUC参数说明
- GUC使用说明
- 文件位置
- 连接和认证
- 资源消耗
- 数据导入导出
- 预写式日志
- 双机复制
- 查询规划
- SPM计划管理
- 错误报告和日志
- 告警上报
- 运行时统计
- 负载管理
- 自动清理
- 客户端连接缺省设置
- 锁管理
- 版本和平台兼容性
- 容错性
- 连接池参数
- 事务
- 双数据库实例复制参数
- 开发人员选项
- 审计
- CM相关参数
- 升级参数
- 其它选项
- 等待事件
- Query
- 系统性能快照
- 黑匣子相关参数
- 安全配置
- 全局临时表
- HyperLogLog
- 用户自定义函数
- 定时任务
- 线程池
- 备份恢复
- Undo
- DCF参数设置
- 闪回相关参数
- 回滚相关参数
- AI特性
- Global SysCache参数
- 备机数据修复
- 分隔符
- Global PLsql Cache特性参数
- 账本数据库参数
- 在线创建索引
- 在线DDL
- 数据生命周期管理-OLTP表压缩
- 向量数据库参数
- Enhanced Toast
- 应用无损透明
- 预留参数
- HTAP混合负载
- 多租数据库
-
FAQ
- GaussDB单表支持的最大列数?
- 如何查询分区表分区信息和索引信息?
- 什么是OID?
- 什么是UDF?
- GaussDB都有哪些通配符,如何使用?
- 数据库对象名称的长度是否有限制?
- 如何查看某张表创建时间?
- 如何并行创建索引?
- 如何创建自动递增列?
- GaussDB数据库能否通过SQL查询内存的使用情况?
- LIMIT 2、LIMIT 2,3、LIMIT 2 OFFSET 3的区别?
- 如何创建默认为当前时间的列?
- 如何判断字段是否为NULL?
- 如何获取当前连接数据库的用户名?
- 如何查询两个时间的时间差?
- SQL语言分为哪几类?
- 触发器的作用是什么?
- 数据库事务正确执行的四个特性是什么?
- GaussDB的DROP、TRUNCATE、DELETE这三种删除数据的方式主要区别是什么?
- GaussDB数据库一个汉字占几个字节?
- 如何设置账号的有效期?
- 唯一约束和唯一索引有什么区别?
- GaussDB如何创建弱口令?
- 什么是脏读、幻读、不可重复读?
- 什么是MVCC?
- 日期/时间类型哪些带时区,哪些不带时区?
- count(*)和count(column)的区别是什么?
- 空字符串和NULL的关系是什么?
- WAL日志是什么,日志文件路径是什么?
- GaussDB中模式、用户和角色如何理解?
- GaussDB支持动态内存管理吗?
- 以pg_temp或pg_toast_temp开头的SCHEMA是什么?
- 函数和存储过程的区别是什么?
- 为什么REVOKE某个用户的CONNECT ON DATABASE权限后还可以登录数据库?
- 全表关联UPDATE时,如何提升效率?
- 使用LIKE进行模糊查找时如何忽略大小写?
- 在使用了字符串处理函数后查询就不使用索引,该如何处理?
- 为什么查询中无法识别表名或者列名?
-
开发指南(分布式_V2.0-3.x)
- 数据库系统概述
- 数据库安全
- 数据库使用入门
- 开发设计建议
-
应用程序开发教程
- 开发规范
- 获取驱动包
-
基于JDBC开发
- 开发流程
- 开发步骤
- 典型应用开发示例
-
JDBC接口参考
- java.sql.Connection
- java.sql.CallableStatement
- java.sql.DatabaseMetaData
- java.sql.Driver
- java.sql.PreparedStatement
- java.sql.ResultSet
- java.sql.ResultSetMetaData
- java.sql.Statement
- javax.sql.ConnectionPoolDataSource
- javax.sql.DataSource
- javax.sql.PooledConnection
- javax.naming.Context
- javax.naming.spi.InitialContextFactory
- CopyManager
- PGReplicationConnection
- PGReplicationStream
- ChainedStreamBuilder
- ChainedCommonStreamBuilder
- 基于ODBC开发
- 基于libpq开发
- 基于Psycopg开发
- 基于ecpg开发
- 基于Go驱动开发
- 附录
-
SQL调优指南
- Query执行流程
- SQL执行计划介绍
- 调优流程
- 更新统计信息
- 审视和修改表定义
- 典型SQL调优点
- 经验总结:SQL语句改写规则
- SQL调优关键参数调整
-
使用Plan Hint进行调优
- Plan Hint调优概述
- 指定Hint所处的查询块Queryblock
- Hint可以指定表的查询块名和schema名
- Join顺序的Hint
- Join方式的Hint
- 行数的Hint
- Stream方式的Hint
- Scan方式的Hint
- 子链接块名的hint
- 运行倾斜的hint
- 参数化路径的Hint
- Hint的错误、冲突及告警
- 优化器GUC参数的Hint
- Custom Plan和Generic Plan选择的Hint
- 指定子查询不展开的Hint
- 指定不使用全局计划缓存的Hint
- 同层参数化路径的Hint
- 设置慢SQL管控规则的Hint
- 支持bitmapscan的hint
- 连接时内表物化的Hint
- 指定agg算法的Hint
- 检查隐式转换的性能问题
- 使用SQL PATCH进行调优
- 实际调优案例
-
SQL参考
- SQL
- 关键字
- 数据类型
- 常量与宏
-
函数和操作符
- 逻辑操作符
- 比较操作符
- 字符处理函数和操作符
- 二进制字符串函数和操作符
- 位串函数和操作符
- 模式匹配操作符
- 数字操作函数和操作符
- 时间和日期处理函数和操作符
- 类型转换函数
- 几何函数和操作符
- 网络地址函数和操作符
- 文本检索函数和操作符
- JSON/JSONB函数和操作符
- HLL函数和操作符
- SEQUENCE函数
- 数组函数和操作符
- 范围函数和操作符
- 聚集函数
- 窗口函数
- 安全函数
- 密态函数和操作符
- 返回集合的函数
- 条件表达式函数
- 系统信息函数
- 系统管理函数
- 统计信息函数
- 触发器函数
- HashFunc函数
- 提示信息函数
- 故障注入系统函数
- 重分布函数
- 分布列推荐函数
- 其他系统函数
- 内部函数
- AI特性函数
- 动态数据脱敏函数
- hotkey特性函数
- Global SysCache特性函数
- 数据损坏检测修复函数
- XML类型函数
- XMLTYPE类型函数
- 废弃函数
- 表达式
- 伪列
- 类型转换
- 系统操作
- 事务控制
- DDL语法一览表
- DML语法一览表
- DCL语法一览表
-
SQL语法
- SQL语法格式说明
- ABORT
- ALTER AUDIT POLICY
- ALTER COLUMN ENCRYPTION KEY
- ALTER COORDINATOR
- ALTER DATABASE
- ALTER DATABASE LINK
- ALTER DEFAULT PRIVILEGES
- ALTER DIRECTORY
- ALTER FOREIGN DATA WRAPPER
- ALTER FUNCTION
- ALTER GLOBAL CONFIGURATION
- ALTER GROUP
- ALTER INDEX
- ALTER LANGUAGE
- ALTER MASKING POLICY
- ALTER MATERIALIZED VIEW
- ALTER NODE
- ALTER NODE GROUP
- ALTER RESOURCE LABEL
- ALTER ROLE
- ALTER ROW LEVEL SECURITY POLICY
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- ALTER SYNONYM
- ALTER SYSTEM KILL SESSION
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TABLESPACE
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER VIEW
- ANALYZE | ANALYSE
- BEGIN
- CALL
- CHECKPOINT
- CLEAN CONNECTION
- CLOSE
- CLUSTER
- COMMENT
- COMMIT | END
- COMMIT PREPARED
- COPY
- CREATE AUDIT POLICY
- CREATE BARRIER
- CREATE CLIENT MASTER KEY
- CREATE COLUMN ENCRYPTION KEY
- CREATE CONVERSION
- CREATE DATABASE
- CREATE DATABASE LINK
- CREATE DIRECTORY
- CREATE FOREIGN DATA WRAPPER
- CREATE FUNCTION
- CREATE GLOBAL INDEX
- CREATE GROUP
- CREATE INCREMENTAL MATERIALIZED VIEW
- CREATE INDEX
- CREATE LANGUAGE
- CREATE MASKING POLICY
- CREATE MATERIALIZED VIEW
- CREATE MODEL
- CREATE NODE
- CREATE NODE GROUP
- CREATE PROCEDURE
- CREATE RESOURCE LABEL
- CREATE ROLE
- CREATE ROW LEVEL SECURITY POLICY
- CREATE SCHEMA
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLESPACE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE VIEW
- CREATE WEAK PASSWORD DICTIONARY
- CURSOR
- DEALLOCATE
- DECLARE
- DELETE
- DO
- DROP AUDIT POLICY
- DROP CLIENT MASTER KEY
- DROP COLUMN ENCRYPTION KEY
- DROP DATABASE
- DROP DATABASE LINK
- DROP DIRECTORY
- DROP FOREIGN DATA WRAPPER
- DROP FUNCTION
- DROP GLOBAL CONFIGURATION
- DROP GROUP
- DROP INDEX
- DROP LANGUAGE
- DROP MASKING POLICY
- DROP MATERIALIZED VIEW
- DROP MODEL
- DROP NODE
- DROP NODE GROUP
- DROP OWNED
- DROP PROCEDURE
- DROP RESOURCE LABEL
- DROP ROLE
- DROP ROW LEVEL SECURITY POLICY
- DROP SCHEMA
- DROP SEQUENCE
- DROP SERVER
- DROP SYNONYM
- DROP TABLE
- DROP TABLESPACE
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP VIEW
- DROP WEAK PASSWORD DICTIONARY
- EXECUTE
- EXECUTE DIRECT
- EXPDP DATABASE
- EXPDP TABLE
- EXPLAIN
- EXPLAIN PLAN
- FETCH
- GRANT
- IMPDP DATABASE CREATE
- IMPDP RECOVER
- INSERT
- IMPDP TABLE
- IMPDP TABLE PREPARE
- LOCK
- MOVE
- MERGE INTO
- PREDICT BY
- PREPARE
- PREPARE TRANSACTION
- PURGE
- REASSIGN OWNED
- REINDEX
- REFRESH INCREMENTAL MATERIALIZED VIEW
- REFRESH MATERIALIZED VIEW
- RELEASE SAVEPOINT
- RESET
- REVOKE
- ROLLBACK
- ROLLBACK PREPARED
- ROLLBACK TO SAVEPOINT
- SAVEPOINT
- SELECT
- SELECT INTO
- SET
- SET CONSTRAINTS
- SET ROLE
- SET SESSION AUTHORIZATION
- SET TRANSACTION
- SHOW
- SHUTDOWN
- START TRANSACTION
- TIMECAPSULE TABLE
- TRUNCATE
- UPDATE
- VACUUM
- VALUES
- 附录
- 最佳实践
- 用户自定义函数
- 存储过程
- 自治事务
-
系统表和系统视图
- 系统表和系统视图概述
-
系统表
- GS_AUDITING_POLICY
- GS_AUDITING_POLICY_ACCESS
- GS_AUDITING_POLICY_FILTERS
- GS_AUDITING_POLICY_PRIVILEGES
- GS_ASP
- GS_CLIENT_GLOBAL_KEYS
- GS_CLIENT_GLOBAL_KEYS_ARGS
- GS_COLUMN_KEYS
- GS_COLUMN_KEYS_ARGS
- GS_DATABASE_LINK
- GS_DB_PRIVILEGE
- GS_DEPENDENCIES
- GS_DEPENDENCIES_OBJ
- GS_ENCRYPTED_COLUMNS
- GS_ENCRYPTED_PROC
- GS_GLOBAL_CONFIG
- GS_JOB_ATTRIBUTE
- GS_JOB_ARGUMENT
- GS_MASKING_POLICY
- GS_MASKING_POLICY_ACTIONS
- GS_MASKING_POLICY_FILTERS
- GS_MATVIEW
- GS_MATVIEW_DEPENDENCY
- GS_MODEL_WAREHOUSE
- GS_OPT_MODEL
- GS_PLAN_TRACE
- GS_POLICY_LABEL
- GS_RECYCLEBIN
- GS_SQL_PATCH
- GS_TXN_SNAPSHOT
- GS_UID
- GS_WORKLOAD_RULE
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_APP_WORKLOADGROUP_MAPPING
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_AUTHID
- PG_AUTH_HISTORY
- PG_AUTH_MEMBERS
- PG_CAST
- PG_CLASS
- PG_COLLATION
- PG_CONSTRAINT
- PG_CONVERSION
- PG_DATABASE
- PG_DB_ROLE_SETTING
- PG_DEFAULT_ACL
- PG_DEPEND
- PG_DESCRIPTION
- PG_DIRECTORY
- PG_ENUM
- PG_EXTENSION
- PG_FOREIGN_DATA_WRAPPER
- PG_FOREIGN_SERVER
- PG_HASHBUCKET
- PG_INDEX
- PG_INHERITS
- PG_JOB
- PG_JOB_PROC
- PG_LANGUAGE
- PG_LARGEOBJECT
- PG_LARGEOBJECT_METADATA
- PG_NAMESPACE
- PG_OBJECT
- PG_OPCLASS
- PG_OPERATOR
- PG_OPFAMILY
- PG_PARTITION
- PG_PLTEMPLATE
- PG_PROC
- PG_RANGE
- PG_REPLICATION_ORIGIN
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_RLSPOLICY
- PG_SECLABEL
- PG_SET
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_SHSECLABEL
- PG_STATISTIC
- PG_STATISTIC_EXT
- PG_SYNONYM
- PG_TABLESPACE
- PG_TRIGGER
- PG_TS_CONFIG
- PG_TS_CONFIG_MAP
- PG_TS_DICT
- PG_TS_PARSER
- PG_TS_TEMPLATE
- PG_TYPE
- PG_USER_MAPPING
- PG_USER_STATUS
- PGXC_CLASS
- PGXC_GROUP
- PGXC_NODE
- PGXC_REDISTB
- PGXC_SLICE
- PLAN_TABLE_DATA
- STATEMENT_HISTORY
- STREAMING_STREAM
- STREAMING_CONT_QUERY
-
系统视图
- ADM_ARGUMENTS
- ADM_AUDIT_OBJECT
- ADM_AUDIT_SESSION
- ADM_AUDIT_STATEMENT
- ADM_AUDIT_TRAIL
- ADM_COL_COMMENTS
- ADM_COL_PRIVS
- ADM_COLL_TYPES
- ADM_CONS_COLUMNS
- ADM_CONSTRAINTS
- ADM_DATA_FILES
- ADM_DEPENDENCIES
- ADM_DIRECTORIES
- ADM_HIST_SNAPSHOT
- ADM_HIST_SQL_PLAN
- ADM_HIST_SQLSTAT
- ADM_HIST_SQLTEXT
- ADM_IND_COLUMNS
- ADM_IND_EXPRESSIONS
- ADM_IND_PARTITIONS
- ADM_IND_SUBPARTITIONS
- ADM_INDEXES
- ADM_OBJECTS
- ADM_PART_COL_STATISTICS
- ADM_PART_INDEXES
- ADM_PART_TABLES
- ADM_PROCEDURES
- ADM_ROLE_PRIVS
- ADM_ROLES
- ADM_SCHEDULER_JOB_ARGS
- ADM_SCHEDULER_JOBS
- ADM_SCHEDULER_PROGRAM_ARGS
- ADM_SCHEDULER_PROGRAMS
- ADM_SCHEDULER_RUNNING_JOBS
- ADM_SEGMENTS
- ADM_SEQUENCES
- ADM_SOURCE
- ADM_SUBPART_KEY_COLUMNS
- ADM_SYNONYMS
- ADM_SYS_PRIVS
- ADM_TAB_COLS
- ADM_TAB_COL_STATISTICS
- ADM_TAB_COLUMNS
- ADM_TAB_COMMENTS
- ADM_TAB_HISTOGRAMS
- ADM_TAB_PARTITIONS
- ADM_TAB_PRIVS
- ADM_TAB_STATISTICS
- ADM_TAB_STATS_HISTORY
- ADM_TABLES
- ADM_TABLESPACES
- ADM_TRIGGERS
- ADM_TYPES
- ADM_TYPE_ATTRS
- ADM_USERS
- ADM_VIEWS
- COMM_CLIENT_INFO
- DB_ALL_TABLES
- DB_ARGUMENTS
- DB_COL_COMMENTS
- DB_COL_PRIVS
- DB_COLL_TYPES
- DB_CONSTRAINTS
- DB_CONS_COLUMNS
- DB_DEPENDENCIES
- DB_IND_COLUMNS
- DB_IND_EXPRESSIONS
- DB_IND_PARTITIONS
- DB_IND_SUBPARTITIONS
- DB_INDEXES
- DB_OBJECTS
- DB_PART_COL_STATISTICS
- DB_PART_KEY_COLUMNS
- DB_PART_TABLES
- DB_PROCEDURES
- DB_SCHEDULER_JOB_ARGS
- DB_SCHEDULER_PROGRAM_ARGS
- DB_SEQUENCES
- DB_SOURCE
- DB_SUBPART_KEY_COLUMNS
- DB_SYNONYMS
- DB_TAB_COL_STATISTICS
- DB_TAB_COLUMNS
- DB_TAB_COMMENTS
- DB_TAB_HISTOGRAMS
- DB_TAB_PARTITIONS
- DB_TAB_STATS_HISTORY
- DB_TAB_SUBPARTITIONS
- DB_TABLES
- DB_TRIGGERS
- DB_TYPES
- DB_USERS
- DB_VIEWS
- DICT
- DICTIONARY
- DV_SESSIONS
- DV_SESSION_LONGOPS
- GET_GLOBAL_PREPARED_XACTS
- GLOBAL_BAD_BLOCK_INFO
- GLOBAL_CLEAR_BAD_BLOCK_INFO
- GLOBAL_COMM_CLIENT_INFO
- GLOBAL_SQL_PATCH
- GLOBAL_STAT_HOTKEYS_INFO
- GLOBAL_WAL_SENDER_STATUS
- GS_ALL_CONTROL_GROUP_INFO
- GS_ALL_PREPARED_STATEMENTS
- GS_AUDITING
- GS_AUDITING_ACCESS
- GS_AUDITING_PRIVILEGE
- GS_CLUSTER_RESOURCE_INFO
- GS_COMM_LISTEN_ADDRESS_EXT_INFO
- GS_DB_LINKS
- GS_DB_PRIVILEGES
- GS_GET_CONTROL_GROUP_INFO
- GS_GET_LISTEN_ADDRESS_EXT_INFO
- GS_GLOBAL_ARCHIVE_STATUS
- GS_GSC_MEMORY_DETAIL
- GS_LABELS
- GS_LSC_MEMORY_DETAIL
- GS_MASKING
- GS_MATVIEWS
- GS_MY_PLAN_TRACE
- GS_SESSION_ALL_SETTINGS
- GS_SQL_COUNT
- GS_STAT_ALL_PARTITIONS
- GS_STAT_XACT_ALL_PARTITIONS
- GS_STATIO_ALL_PARTITIONS
- GS_WORKLOAD_RULE_STAT
- GV_INSTANCE
- GV_SESSION
- MPP_TABLES
- MY_COL_COMMENTS
- MY_COL_PRIVS
- MY_COLL_TYPES
- MY_CONS_COLUMNS
- MY_CONSTRAINTS
- MY_DEPENDENCIES
- MY_IND_COLUMNS
- MY_IND_EXPRESSIONS
- MY_IND_PARTITIONS
- MY_IND_SUBPARTITIONS
- MY_INDEXES
- MY_JOBS
- MY_OBJECTS
- MY_PART_COL_STATISTICS
- MY_PART_INDEXES
- MY_PART_KEY_COLUMNS
- MY_PART_TABLES
- MY_PROCEDURES
- MY_ROLE_PRIVS
- MY_SCHEDULER_JOB_ARGS
- MY_SCHEDULER_PROGRAM_ARGS
- MY_SEQUENCES
- MY_SOURCE
- MY_SUBPART_KEY_COLUMNS
- MY_SYNONYMS
- MY_SYS_PRIVS
- MY_TAB_COL_STATISTICS
- MY_TAB_COLUMNS
- MY_TAB_COMMENTS
- MY_TAB_HISTOGRAMS
- MY_TAB_PARTITIONS
- MY_TAB_STATISTICS
- MY_TAB_STATS_HISTORY
- MY_TABLES
- MY_TABLESPACES
- MY_TRIGGERS
- MY_TYPE_ATTRS
- MY_TYPES
- MY_VIEWS
- NLS_DATABASE_PARAMETERS
- NLS_INSTANCE_PARAMETERS
- PG_AVAILABLE_EXTENSION_VERSIONS
- PG_AVAILABLE_EXTENSIONS
- PG_COMM_DELAY
- PG_COMM_RECV_STREAM
- PG_COMM_SEND_STREAM
- PG_COMM_STATUS
- PG_CONTROL_GROUP_CONFIG
- PG_CURSORS
- PG_EXT_STATS
- PG_GET_INVALID_BACKENDS
- PG_GET_SENDERS_CATCHUP_TIME
- PG_GROUP
- PG_INDEXES
- PG_LOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_POOLER_STATUS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_REPLICATION_SLOTS
- PG_RLSPOLICIES
- PG_ROLES
- PG_RULES
- PG_RUNNING_XACTS
- PG_SECLABELS
- PG_SETTINGS
- PG_SHADOW
- PG_SHARED_MEMORY_DETAIL
- PG_STAT_ACTIVITY
- PG_STAT_ALL_INDEXES
- PG_STAT_ALL_TABLES
- PG_STAT_BAD_BLOCK
- PG_STAT_BGWRITER
- PG_STAT_DATABASE
- PG_STAT_DATABASE_CONFLICTS
- PG_STAT_REPLICATION
- PG_STAT_SYS_INDEXES
- PG_STAT_SYS_TABLES
- PG_STAT_USER_FUNCTIONS
- PG_STAT_USER_INDEXES
- PG_STAT_USER_TABLES
- PG_STAT_XACT_ALL_TABLES
- PG_STAT_XACT_SYS_TABLES
- PG_STAT_XACT_USER_FUNCTIONS
- PG_STAT_XACT_USER_TABLES
- PG_STATS
- PG_STATIO_ALL_INDEXES
- PG_STATIO_ALL_SEQUENCES
- PG_STATIO_ALL_TABLES
- PG_STATIO_SYS_INDEXES
- PG_STATIO_SYS_SEQUENCES
- PG_STATIO_SYS_TABLES
- PG_STATIO_USER_INDEXES
- PG_STATIO_USER_SEQUENCES
- PG_STATIO_USER_TABLES
- PG_THREAD_WAIT_STATUS
- PG_TABLES
- PG_TDE_INFO
- PG_TIMEZONE_ABBREVS
- PG_TIMEZONE_NAMES
- PG_TOTAL_MEMORY_DETAIL
- PG_TOTAL_USER_RESOURCE_INFO
- PG_TOTAL_USER_RESOURCE_INFO_OID
- PG_USER
- PG_USER_MAPPINGS
- PG_VARIABLE_INFO
- PG_VIEWS
- PGXC_COMM_DELAY
- PGXC_COMM_RECV_STREAM
- PGXC_COMM_SEND_STREAM
- PGXC_COMM_STATUS
- PGXC_GET_STAT_ALL_TABLES
- PGXC_GET_TABLE_SKEWNESS
- PGXC_NODE_ENV
- PGXC_OS_THREADS
- PGXC_PREPARED_XACTS
- PGXC_RUNNING_XACTS
- PGXC_SQL_COUNT
- PGXC_STAT_ACTIVITY
- PGXC_STAT_BAD_BLOCK
- PGXC_THREAD_WAIT_STATUS
- PGXC_TOTAL_MEMORY_DETAIL
- PGXC_VARIABLE_INFO
- PLAN_TABLE
- PV_FILE_STAT
- PV_INSTANCE_TIME
- PV_OS_RUN_INFO
- PV_REDO_STAT
- PV_SESSION_MEMORY
- PV_SESSION_MEMORY_CONTEXT
- PV_SESSION_MEMORY_DETAIL
- PV_SESSION_STAT
- PV_SESSION_TIME
- PV_THREAD_MEMORY_CONTEXT
- PV_TOTAL_MEMORY_DETAIL
- ROLE_ROLE_PRIVS
- ROLE_SYS_PRIVS
- ROLE_TAB_PRIVS
- SYS_DUMMY
- V_INSTANCE
- V_MYSTAT
- V_SESSION
- V$NLS_PARAMETERS
- V$SESSION_WAIT
- V$SYSSTAT
- V$SYSTEM_EVENT
- V$VERSION
-
Schema
- Information Schema
-
DBE_PERF Schema
- OS
- Instance
- Memory
- File
-
Object
- STAT_USER_TABLES
- SUMMARY_STAT_USER_TABLES
- GLOBAL_STAT_USER_TABLES
- STAT_USER_INDEXES
- SUMMARY_STAT_USER_INDEXES
- GLOBAL_STAT_USER_INDEXES
- STAT_SYS_TABLES
- SUMMARY_STAT_SYS_TABLES
- GLOBAL_STAT_SYS_TABLES
- STAT_SYS_INDEXES
- SUMMARY_STAT_SYS_INDEXES
- GLOBAL_STAT_SYS_INDEXES
- STAT_ALL_TABLES
- SUMMARY_STAT_ALL_TABLES
- GLOBAL_STAT_ALL_TABLES
- STAT_ALL_INDEXES
- SUMMARY_STAT_ALL_INDEXES
- GLOBAL_STAT_ALL_INDEXES
- STAT_DATABASE
- SUMMARY_STAT_DATABASE
- GLOBAL_STAT_DATABASE
- STAT_DATABASE_CONFLICTS
- SUMMARY_STAT_DATABASE_CONFLICTS
- GLOBAL_STAT_DATABASE_CONFLICTS
- STAT_XACT_ALL_TABLES
- SUMMARY_STAT_XACT_ALL_TABLES
- GLOBAL_STAT_XACT_ALL_TABLES
- STAT_XACT_SYS_TABLES
- SUMMARY_STAT_XACT_SYS_TABLES
- GLOBAL_STAT_XACT_SYS_TABLES
- STAT_XACT_USER_TABLES
- SUMMARY_STAT_XACT_USER_TABLES
- GLOBAL_STAT_XACT_USER_TABLES
- STAT_XACT_USER_FUNCTIONS
- SUMMARY_STAT_XACT_USER_FUNCTIONS
- GLOBAL_STAT_XACT_USER_FUNCTIONS
- STAT_BAD_BLOCK
- SUMMARY_STAT_BAD_BLOCK
- GLOBAL_STAT_BAD_BLOCK
- STAT_USER_FUNCTIONS
- SUMMARY_STAT_USER_FUNCTIONS
- GLOBAL_STAT_USER_FUNCTIONS
- Workload
-
Session/Thread
- SESSION_STAT
- GLOBAL_SESSION_STAT
- SESSION_TIME
- GLOBAL_SESSION_TIME
- SESSION_MEMORY
- GLOBAL_SESSION_MEMORY
- SESSION_MEMORY_DETAIL
- GLOBAL_SESSION_MEMORY_DETAIL
- SESSION_STAT_ACTIVITY
- GLOBAL_SESSION_STAT_ACTIVITY
- THREAD_WAIT_STATUS
- GLOBAL_THREAD_WAIT_STATUS
- LOCAL_THREADPOOL_STATUS
- GLOBAL_THREADPOOL_STATUS
- SESSION_CPU_RUNTIME
- SESSION_MEMORY_RUNTIME
- LOCAL_ACTIVE_SESSION
- GLOBAL_ACTIVE_SESSION
- Transaction
- Query
-
Cache/IO
- STATIO_USER_TABLES
- SUMMARY_STATIO_USER_TABLES
- GLOBAL_STATIO_USER_TABLES
- STATIO_USER_INDEXES
- SUMMARY_STATIO_USER_INDEXES
- GLOBAL_STATIO_USER_INDEXES
- STATIO_USER_SEQUENCES
- SUMMARY_STATIO_USER_SEQUENCES
- GLOBAL_STATIO_USER_SEQUENCES
- STATIO_SYS_TABLES
- SUMMARY_STATIO_SYS_TABLES
- GLOBAL_STATIO_SYS_TABLES
- STATIO_SYS_INDEXES
- SUMMARY_STATIO_SYS_INDEXES
- GLOBAL_STATIO_SYS_INDEXES
- STATIO_SYS_SEQUENCES
- SUMMARY_STATIO_SYS_SEQUENCES
- GLOBAL_STATIO_SYS_SEQUENCES
- STATIO_ALL_TABLES
- SUMMARY_STATIO_ALL_TABLES
- GLOBAL_STATIO_ALL_TABLES
- STATIO_ALL_INDEXES
- SUMMARY_STATIO_ALL_INDEXES
- GLOBAL_STATIO_ALL_INDEXES
- STATIO_ALL_SEQUENCES
- SUMMARY_STATIO_ALL_SEQUENCES
- GLOBAL_STATIO_ALL_SEQUENCES
- Comm
-
Utility
- REPLICATION_STAT
- GLOBAL_REPLICATION_STAT
- REPLICATION_SLOTS
- GLOBAL_REPLICATION_SLOTS
- PARALLEL_DECODE_STATUS
- GLOBAL_PARALLEL_DECODE_STATUS
- PARALLEL_DECODE_THREAD_INFO
- GLOBAL_PARALLEL_DECODE_THREAD_INFO
- BGWRITER_STAT
- GLOBAL_BGWRITER_STAT
- POOLER_STATUS
- GLOBAL_COMM_CHECK_CONNECTION_STATUS
- GLOBAL_CKPT_STATUS
- GLOBAL_DOUBLE_WRITE_STATUS
- GLOBAL_PAGEWRITER_STATUS
- GLOBAL_POOLER_STATUS
- GLOBAL_RECORD_RESET_TIME
- GLOBAL_REDO_STATUS
- GLOBAL_RECOVERY_STATUS
- CLASS_VITAL_INFO
- USER_LOGIN
- SUMMARY_USER_LOGIN
- GLOBAL_GET_BGWRITER_STATUS
- GLOBAL_SINGLE_FLUSH_DW_STATUS
- GLOBAL_CANDIDATE_STATUS
- Lock
- Wait Events
- Configuration
- Operator
- Workload Manager
- Global Plancache
- RTO & RPO
- AI Watchdog
- 废弃
-
DBE_SQL_UTIL Schema
- DBE_SQL_UTIL.create_hint_sql_patch
- DBE_SQL_UTIL.create_abort_sql_patch
- DBE_SQL_UTIL.drop_sql_patch
- DBE_SQL_UTIL.enable_sql_patch
- DBE_SQL_UTIL.disable_sql_patch
- DBE_SQL_UTIL.show_sql_patch
- DBE_SQL_UTIL.create_hint_sql_patch
- DBE_SQL_UTIL.create_abort_sql_patch
- DBE_SQL_UTIL.create_remote_hint_sql_patch
- DBE_SQL_UTIL.create_remote_abort_sql_patch
- DBE_SQL_UTIL.drop_remote_sql_patch
- DBE_SQL_UTIL.enable_remote_sql_patch
- DBE_SQL_UTIL.disable_remote_sql_patch
-
配置运行参数
- 查看参数
- 设置参数
- GUC参数说明
-
开发指南(集中式_V2.0-3.x)
- 数据库系统概述
- 数据库安全
- 数据库使用入门
- 开发设计建议
-
应用程序开发教程
- GaussDB应用程序开发教程
- 开发规范
- 驱动包获取
-
基于JDBC开发
- 开发流程
- 开发步骤
- 典型应用开发示例
-
JDBC接口参考
- java.sql.Connection
- java.sql.CallableStatement
- java.sql.DatabaseMetaData
- java.sql.Driver
- java.sql.PreparedStatement
- java.sql.ResultSet
- java.sql.ResultSetMetaData
- java.sql.Statement
- javax.sql.ConnectionPoolDataSource
- javax.sql.DataSource
- javax.sql.PooledConnection
- javax.naming.Context
- javax.naming.spi.InitialContextFactory
- CopyManager
- PGReplicationConnection
- PGReplicationStream
- ChainedStreamBuilder
- ChainedCommonStreamBuilder
- PGobject
- 基于ODBC开发
- 基于libpq开发
- 基于Psycopg开发
- 基于Go驱动开发
- 基于ecpg开发
- 附录
-
SQL调优指南
- Query执行流程
- SQL执行计划介绍
- 调优流程
- 更新统计信息
- 审视和修改表定义
- 典型SQL调优点
- 经验总结:SQL语句改写规则
- SQL调优关键参数调整
-
使用Plan Hint进行调优
- Plan Hint调优概述
- 指定Hint所处于的查询块Queryblock
- Hint可以指定表的查询块名和schema名
- Join顺序的Hint
- Join方式的Hint
- 行数的Hint
- Stream方式的Hint
- Scan方式的Hint
- 子链接块名的hint
- Hint的错误、冲突及告警
- 优化器GUC参数的Hint
- Custom Plan和Generic Plan选择的Hint
- 指定子查询不展开的Hint
- 指定不使用全局计划缓存的Hint
- 同层参数化路径的Hint
- 设置慢SQL管控规则的Hint
- 自适应计划选择的Hint
- 为子计划结果进行物化的Hint
- 支持bitmapscan的hint
- 连接时内表物化的Hint
- 指定agg算法的Hint
- PLAN TRACE使用介绍
- 使用SQL PATCH进行调优
- 实际调优案例
-
SQL参考
- SQL
- 关键字
- 数据类型
- 常量与宏
-
函数和操作符
- 逻辑操作符
- 比较操作符
- 字符处理函数和操作符
- 二进制字符串函数和操作符
- 位串函数和操作符
- 模式匹配操作符
- 数字操作函数和操作符
- 时间和日期处理函数和操作符
- 类型转换函数
- 几何函数和操作符
- 网络地址函数和操作符
- 文本检索函数和操作符
- JSON/JSONB函数和操作符
- HLL函数和操作符
- SEQUENCE函数
- 数组函数和操作符
- 范围函数和操作符
- 聚集函数
- 窗口函数
- 安全函数
- 密态函数和操作符
- 返回集合的函数
- 条件表达式函数
- 系统信息函数
- 系统管理函数
- 统计信息函数
- 触发器函数
- HashFunc函数
- 提示信息函数
- 全局临时表函数
- 故障注入系统函数
- AI特性函数
- 动态数据脱敏函数
- 层次递归查询函数
- 内部函数
- Global SysCache特性函数
- 数据损坏检测修复函数
- XML类型函数
- XMLTYPE类型函数
- Global Plsql Cache特性函数
- 其他系统函数
- 废弃函数
- 表达式
- 伪列
- 类型转换
- 系统操作
- 事务控制
- DDL语法一览表
- DML语法一览表
- DCL语法一览表
-
SQL语法
- SQL语法格式说明
- ABORT
- ALTER AGGREGATE
- ALTER AUDIT POLICY
- ALTER COLUMN ENCRYPTION KEY
- ALTER EVENT
- ALTER DATABASE
- ALTER DATABASE LINK
- ALTER DEFAULT PRIVILEGES
- ALTER DIRECTORY
- ALTER FOREIGN DATA WRAPPER
- ALTER FUNCTION
- ALTER GLOBAL CONFIGURATION
- ALTER GROUP
- ALTER INDEX
- ALTER LANGUAGE
- ALTER MASKING POLICY
- ALTER MATERIALIZED VIEW
- ALTER OPERATOR
- ALTER PACKAGE
- ALTER PROCEDURE
- ALTER RESOURCE LABEL
- ALTER RESOURCE POOL
- ALTER ROLE
- ALTER ROW LEVEL SECURITY POLICY
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- ALTER SYNONYM
- ALTER SYSTEM KILL SESSION
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TABLE SUBPARTITION
- ALTER TABLESPACE
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER USER MAPPING
- ALTER VIEW
- ANALYZE | ANALYSE
- BEGIN
- CALL
- CHECKPOINT
- CLEAN CONNECTION
- CLOSE
- CLUSTER
- COMMENT
- COMMIT | END
- COMMIT PREPARED
- COPY
- CREATE AGGREGATE
- CREATE AUDIT POLICY
- CREATE CAST
- CREATE CLIENT MASTER KEY
- CREATE COLUMN ENCRYPTION KEY
- CREATE CONVERSION
- CREATE DATABASE
- CREATE DATABASE LINK
- CREATE DIRECTORY
- CREATE EVENT
- CREATE FOREIGN DATA WRAPPER
- CREATE FUNCTION
- CREATE GROUP
- CREATE INCREMENTAL MATERIALIZED VIEW
- CREATE INDEX
- CREATE LANGUAGE
- CREATE MASKING POLICY
- CREATE MATERIALIZED VIEW
- CREATE MODEL
- CREATE OPERATOR
- CREATE OPERATOR CLASS
- CREATE PACKAGE
- CREATE PROCEDURE
- CREATE RESOURCE LABEL
- CREATE RESOURCE POOL
- CREATE ROLE
- CREATE ROW LEVEL SECURITY POLICY
- CREATE RULE
- CREATE SCHEMA
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TABLESPACE
- CREATE TABLE SUBPARTITION
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE USER MAPPING
- CREATE VIEW
- CREATE WEAK PASSWORD DICTIONARY
- CURSOR
- DEALLOCATE
- DECLARE
- DELETE
- DO
- DROP AGGREGATE
- DROP AUDIT POLICY
- DROP CAST
- DROP CLIENT MASTER KEY
- DROP COLUMN ENCRYPTION KEY
- DROP DATABASE
- DROP DATABASE LINK
- DROP DIRECTORY
- DROP EVENT
- DROP FOREIGN DATA WRAPPER
- DROP FUNCTION
- DROP GLOBAL CONFIGURATION
- DROP GROUP
- DROP INDEX
- DROP LANGUAGE
- DROP MASKING POLICY
- DROP MATERIALIZED VIEW
- DROP MODEL
- DROP OPERATOR
- DROP OWNED
- DROP PACKAGE
- DROP PROCEDURE
- DROP RESOURCE LABEL
- DROP RESOURCE POOL
- DROP ROLE
- DROP ROW LEVEL SECURITY POLICY
- DROP RULE
- DROP SCHEMA
- DROP SEQUENCE
- DROP SERVER
- DROP SYNONYM
- DROP TABLE
- DROP TABLESPACE
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP USER MAPPING
- DROP VIEW
- DROP WEAK PASSWORD DICTIONARY
- EXECUTE
- EXPDP DATABASE
- EXPDP TABLE
- EXPLAIN
- EXPLAIN PLAN
- FETCH
- GRANT
- IMPDP DATABASE CREATE
- IMPDP RECOVER
- IMPDP TABLE
- IMPDP TABLE PREPARE
- INSERT
- LOCK
- MERGE INTO
- MOVE
- PREDICT BY
- PREPARE
- PREPARE TRANSACTION
- PURGE
- REASSIGN OWNED
- REFRESH INCREMENTAL MATERIALIZED VIEW
- REFRESH MATERIALIZED VIEW
- REINDEX
- RELEASE SAVEPOINT
- RESET
- REVOKE
- ROLLBACK
- ROLLBACK PREPARED
- ROLLBACK TO SAVEPOINT
- SAVEPOINT
- SELECT
- SELECT INTO
- SET
- SET CONSTRAINTS
- SET ROLE
- SET SESSION AUTHORIZATION
- SET TRANSACTION
- SHOW
- SHOW EVENTS
- SHUTDOWN
- SNAPSHOT
- START TRANSACTION
- TIMECAPSULE TABLE
- TRUNCATE
- UPDATE
- VACUUM
- VALUES
- ALTER EXTENSION
- CREATE EXTENSION
- DROP EXTENSION
- 附录
- 最佳实践
- 用户自定义函数
- 存储过程
- 自治事务
-
系统表和系统视图
- 系统表和系统视图概述
-
系统表
- GS_ASP
- GS_AUDITING_POLICY
- GS_AUDITING_POLICY_ACCESS
- GS_AUDITING_POLICY_FILTERS
- GS_AUDITING_POLICY_PRIVILEGES
- GS_CLIENT_GLOBAL_KEYS
- GS_CLIENT_GLOBAL_KEYS_ARGS
- GS_COLUMN_KEYS
- GS_COLUMN_KEYS_ARGS
- GS_DATABASE_LINK
- GS_DB_PRIVILEGE
- GS_DEPENDENCIES
- GS_DEPENDENCIES_OBJ
- GS_ENCRYPTED_COLUMNS
- GS_ENCRYPTED_PROC
- GS_GLOBAL_CONFIG
- GS_JOB_ARGUMENT
- GS_JOB_ATTRIBUTE
- GS_MASKING_POLICY
- GS_MASKING_POLICY_ACTIONS
- GS_MASKING_POLICY_FILTERS
- GS_MATVIEW
- GS_MATVIEW_DEPENDENCY
- GS_MODEL_WAREHOUSE
- GS_OPT_MODEL
- GS_PACKAGE
- GS_PLAN_TRACE
- GS_POLICY_LABEL
- GS_RECYCLEBIN
- GS_SQL_PATCH
- GS_TXN_SNAPSHOT
- GS_UID
- GS_WORKLOAD_RULE
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_APP_WORKLOADGROUP_MAPPING
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_AUTHID
- PG_AUTH_HISTORY
- PG_AUTH_MEMBERS
- PG_CAST
- PG_CLASS
- PG_COLLATION
- PG_CONSTRAINT
- PG_CONVERSION
- PG_DATABASE
- PG_DB_ROLE_SETTING
- PG_DEFAULT_ACL
- PG_DEPEND
- PG_DESCRIPTION
- PG_DIRECTORY
- PG_ENUM
- PG_EXTENSION
- PG_FOREIGN_DATA_WRAPPER
- PG_FOREIGN_SERVER
- PG_HASHBUCKET
- PG_INDEX
- PG_INHERITS
- PG_JOB
- PG_JOB_PROC
- PG_LANGUAGE
- PG_LARGEOBJECT
- PG_LARGEOBJECT_METADATA
- PG_NAMESPACE
- PG_OBJECT
- PG_OPCLASS
- PG_OPERATOR
- PG_OPFAMILY
- PG_PARTITION
- PG_PLTEMPLATE
- PG_PROC
- PG_RANGE
- PG_REPLICATION_ORIGIN
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_RLSPOLICY
- PG_SECLABEL
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_SHSECLABEL
- PG_SET
- PG_STATISTIC
- PG_STATISTIC_EXT
- PG_SYNONYM
- PG_TABLESPACE
- PG_TRIGGER
- PG_TS_CONFIG
- PG_TS_CONFIG_MAP
- PG_TS_DICT
- PG_TS_PARSER
- PG_TS_TEMPLATE
- PG_TYPE
- PG_USER_MAPPING
- PG_USER_STATUS
- PGXC_CLASS
- PGXC_GROUP
- PGXC_NODE
- PGXC_SLICE
- PLAN_TABLE_DATA
- STATEMENT_HISTORY
- STREAMING_STREAM
- STREAMING_CONT_QUERY
-
系统视图
- ADM_ARGUMENTS
- ADM_AUDIT_OBJECT
- ADM_AUDIT_SESSION
- ADM_AUDIT_STATEMENT
- ADM_AUDIT_TRAIL
- ADM_COL_COMMENTS
- ADM_COL_PRIVS
- ADM_COLL_TYPES
- ADM_CONS_COLUMNS
- ADM_CONSTRAINTS
- ADM_DATA_FILES
- ADM_DEPENDENCIES
- ADM_DIRECTORIES
- ADM_HIST_SNAPSHOT
- ADM_HIST_SQL_PLAN
- ADM_HIST_SQLSTAT
- ADM_HIST_SQLTEXT
- ADM_IND_COLUMNS
- ADM_IND_EXPRESSIONS
- ADM_IND_PARTITIONS
- ADM_IND_SUBPARTITIONS
- ADM_INDEXES
- ADM_OBJECTS
- ADM_PART_COL_STATISTICS
- ADM_PART_INDEXES
- ADM_PART_TABLES
- ADM_PROCEDURES
- ADM_RECYCLEBIN
- ADM_ROLE_PRIVS
- ADM_ROLES
- ADM_SCHEDULER_JOB_ARGS
- ADM_SCHEDULER_JOBS
- ADM_SCHEDULER_PROGRAM_ARGS
- ADM_SCHEDULER_PROGRAMS
- ADM_SCHEDULER_RUNNING_JOBS
- ADM_SEGMENTS
- ADM_SEQUENCES
- ADM_SOURCE
- ADM_SUBPART_COL_STATISTICS
- ADM_SUBPART_KEY_COLUMNS
- ADM_SYNONYMS
- ADM_SYS_PRIVS
- ADM_TAB_COL_STATISTICS
- ADM_TAB_COLS
- ADM_TAB_HISTOGRAMS
- ADM_TAB_PRIVS
- ADM_TAB_STATISTICS
- ADM_TAB_STATS_HISTORY
- ADM_TAB_SUBPARTITIONS
- ADM_TABLES
- ADM_TABLESPACES
- ADM_TAB_COLUMNS
- ADM_TAB_COMMENTS
- ADM_TAB_PARTITIONS
- ADM_TRIGGERS
- ADM_TYPE_ATTRS
- ADM_TYPES
- ADM_USERS
- ADM_VIEWS
- DB_ALL_TABLES
- DB_ARGUMENTS
- DB_COL_COMMENTS
- DB_COL_PRIVS
- DB_COLL_TYPES
- DB_CONS_COLUMNS
- DB_CONSTRAINTS
- DB_DEPENDENCIES
- DB_ERRORS
- DB_IND_COLUMNS
- DB_IND_EXPRESSIONS
- DB_IND_PARTITIONS
- DB_IND_SUBPARTITIONS
- DB_INDEXES
- DB_OBJECTS
- DB_PART_COL_STATISTICS
- DB_PART_INDEXES
- DB_PART_KEY_COLUMNS
- DB_PART_TABLES
- DB_PROCEDURES
- DB_SCHEDULER_JOB_ARGS
- DB_SCHEDULER_PROGRAM_ARGS
- DB_SEQUENCES
- DB_SOURCE
- DB_SUBPART_COL_STATISTICS
- DB_SUBPART_KEY_COLUMNS
- DB_SYNONYMS
- DB_TAB_COL_STATISTICS
- DB_TAB_COLUMNS
- DB_TAB_COMMENTS
- DB_TAB_HISTOGRAMS
- DB_TAB_PARTITIONS
- DB_TAB_STATS_HISTORY
- DB_TAB_SUBPARTITIONS
- DB_TABLES
- DB_TRIGGERS
- DB_TYPES
- DB_USERS
- DB_VIEWS
- DICT
- DICTIONARY
- DV_SESSION_LONGOPS
- DV_SESSIONS
- GS_ALL_CONTROL_GROUP_INFO
- GS_ALL_PREPARED_STATEMENTS
- GS_AUDITING
- GS_AUDITING_ACCESS
- GS_AUDITING_PRIVILEGE
- GS_CLUSTER_RESOURCE_INFO
- GS_COMM_LISTEN_ADDRESS_EXT_INFO
- GS_COMM_PROXY_THREAD_STATUS
- GS_DB_LINKS
- GS_DB_PRIVILEGES
- GS_FILE_STAT
- GS_GET_CONTROL_GROUP_INFO
- GS_GET_LISTEN_ADDRESS_EXT_INFO
- GS_GLC_MEMORY_DETAIL
- GS_GLOBAL_ARCHIVE_STATUS
- GS_GSC_MEMORY_DETAIL
- GS_INSTANCE_TIME
- GS_LABELS
- GS_LSC_MEMORY_DETAIL
- GS_MASKING
- GS_MATVIEWS
- GS_MY_PLAN_TRACE
- GS_OS_RUN_INFO
- GS_REDO_STAT
- GS_SESSION_ALL_SETTINGS
- GS_SESSION_MEMORY
- GS_SESSION_MEMORY_CONTEXT
- GS_SESSION_MEMORY_DETAIL
- GS_SESSION_STAT
- GS_SESSION_TIME
- GS_SQL_COUNT
- GS_STAT_ALL_PARTITIONS
- GS_STAT_XACT_ALL_PARTITIONS
- GS_STATIO_ALL_PARTITIONS
- GS_THREAD_MEMORY_CONTEXT
- GS_TOTAL_MEMORY_DETAIL
- GS_TOTAL_NODEGROUP_MEMORY_DETAIL
- GS_WLM_WORKLOAD_RECORDS
- GS_WORKLOAD_RULE_STAT
- GV_INSTANCE
- GV_SESSION
- MPP_TABLES
- MY_COL_COMMENTS
- MY_COL_PRIVS
- MY_COLL_TYPES
- MY_CONS_COLUMNS
- MY_CONSTRAINTS
- MY_DEPENDENCIES
- MY_ERRORS
- MY_IND_COLUMNS
- MY_IND_EXPRESSIONS
- MY_IND_PARTITIONS
- MY_IND_SUBPARTITIONS
- MY_INDEXES
- MY_JOBS
- MY_OBJECTS
- MY_PART_COL_STATISTICS
- MY_PART_INDEXES
- MY_PART_KEY_COLUMNS
- MY_PART_TABLES
- MY_PROCEDURES
- MY_RECYCLEBIN
- MY_ROLE_PRIVS
- MY_SCHEDULER_JOB_ARGS
- MY_SCHEDULER_PROGRAM_ARGS
- MY_SEQUENCES
- MY_SOURCE
- MY_SUBPART_COL_STATISTICS
- MY_SUBPART_KEY_COLUMNS
- MY_SYNONYMS
- MY_SYS_PRIVS
- MY_TAB_COL_STATISTICS
- MY_TAB_COLUMNS
- MY_TAB_COMMENTS
- MY_TAB_HISTOGRAMS
- MY_TAB_PARTITIONS
- MY_TAB_STATISTICS
- MY_TAB_STATS_HISTORY
- MY_TAB_SUBPARTITIONS
- MY_TABLES
- MY_TABLESPACES
- MY_TRIGGERS
- MY_TYPE_ATTRS
- MY_TYPES
- MY_VIEWS
- NLS_DATABASE_PARAMETERS
- NLS_INSTANCE_PARAMETERS
- PG_AVAILABLE_EXTENSION_VERSIONS
- PG_AVAILABLE_EXTENSIONS
- PG_COMM_DELAY
- PG_COMM_RECV_STREAM
- PG_COMM_SEND_STREAM
- PG_COMM_STATUS
- PG_CONTROL_GROUP_CONFIG
- PG_CURSORS
- PG_EXT_STATS
- PG_GET_SENDERS_CATCHUP_TIME
- PG_GROUP
- PG_GTT_ATTACHED_PIDS
- PG_GTT_RELSTATS
- PG_GTT_STATS
- PG_INDEXES
- PG_LOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_REPLICATION_ORIGIN_STATUS
- PG_REPLICATION_SLOTS
- PG_RLSPOLICIES
- PG_ROLES
- PG_RULES
- PG_RUNNING_XACTS
- PG_SECLABELS
- PG_SETTINGS
- PG_SHADOW
- PG_STAT_ACTIVITY
- PG_STAT_ACTIVITY_NG
- PG_STAT_ALL_INDEXES
- PG_STAT_ALL_TABLES
- PG_STAT_BAD_BLOCK
- PG_STAT_BGWRITER
- PG_STAT_DATABASE
- PG_STAT_DATABASE_CONFLICTS
- PG_STAT_REPLICATION
- PG_STAT_SYS_INDEXES
- PG_STAT_SYS_TABLES
- PG_STAT_USER_FUNCTIONS
- PG_STAT_USER_INDEXES
- PG_STAT_USER_TABLES
- PG_STAT_XACT_ALL_TABLES
- PG_STAT_XACT_SYS_TABLES
- PG_STAT_XACT_USER_FUNCTIONS
- PG_STAT_XACT_USER_TABLES
- PG_STATS
- PG_STATIO_ALL_INDEXES
- PG_STATIO_ALL_SEQUENCES
- PG_STATIO_ALL_TABLES
- PG_STATIO_SYS_INDEXES
- PG_STATIO_SYS_SEQUENCES
- PG_STATIO_SYS_TABLES
- PG_STATIO_USER_INDEXES
- PG_STATIO_USER_SEQUENCES
- PG_STATIO_USER_TABLES
- PG_TABLES
- PG_TDE_INFO
- PG_THREAD_WAIT_STATUS
- PG_TIMEZONE_ABBREVS
- PG_TIMEZONE_NAMES
- PG_TOTAL_MEMORY_DETAIL
- PG_TOTAL_USER_RESOURCE_INFO
- PG_TOTAL_USER_RESOURCE_INFO_OID
- PG_USER
- PG_USER_MAPPINGS
- PG_VARIABLE_INFO
- PG_VIEWS
- PGXC_PREPARED_XACTS
- PGXC_THREAD_WAIT_STATUS
- PLAN_TABLE
- ROLE_ROLE_PRIVS
- ROLE_SYS_PRIVS
- ROLE_TAB_PRIVS
- SYS_DUMMY
- V_INSTANCE
- V_MYSTAT
- V_SESSION
- V$GLOBAL_TRANSACTION
- V$NLS_PARAMETERS
- V$SESSION_WAIT
- V$SYSSTAT
- V$SYSTEM_EVENT
- V$VERSION
- 废弃
-
Schema
- Information Schema
-
DBE_PERF Schema
- OS
- Instance
- Memory
- File
-
Object
- STAT_USER_TABLES
- SUMMARY_STAT_USER_TABLES
- GLOBAL_STAT_USER_TABLES
- STAT_USER_INDEXES
- SUMMARY_STAT_USER_INDEXES
- GLOBAL_STAT_USER_INDEXES
- STAT_SYS_TABLES
- SUMMARY_STAT_SYS_TABLES
- GLOBAL_STAT_SYS_TABLES
- STAT_SYS_INDEXES
- SUMMARY_STAT_SYS_INDEXES
- GLOBAL_STAT_SYS_INDEXES
- STAT_ALL_TABLES
- SUMMARY_STAT_ALL_TABLES
- GLOBAL_STAT_ALL_TABLES
- STAT_ALL_INDEXES
- SUMMARY_STAT_ALL_INDEXES
- GLOBAL_STAT_ALL_INDEXES
- STAT_DATABASE
- SUMMARY_STAT_DATABASE
- GLOBAL_STAT_DATABASE
- STAT_DATABASE_CONFLICTS
- SUMMARY_STAT_DATABASE_CONFLICTS
- GLOBAL_STAT_DATABASE_CONFLICTS
- STAT_XACT_ALL_TABLES
- SUMMARY_STAT_XACT_ALL_TABLES
- GLOBAL_STAT_XACT_ALL_TABLES
- STAT_XACT_SYS_TABLES
- SUMMARY_STAT_XACT_SYS_TABLES
- GLOBAL_STAT_XACT_SYS_TABLES
- STAT_XACT_USER_TABLES
- SUMMARY_STAT_XACT_USER_TABLES
- GLOBAL_STAT_XACT_USER_TABLES
- STAT_XACT_USER_FUNCTIONS
- SUMMARY_STAT_XACT_USER_FUNCTIONS
- GLOBAL_STAT_XACT_USER_FUNCTIONS
- STAT_BAD_BLOCK
- SUMMARY_STAT_BAD_BLOCK
- GLOBAL_STAT_BAD_BLOCK
- STAT_USER_FUNCTIONS
- SUMMARY_STAT_USER_FUNCTIONS
- GLOBAL_STAT_USER_FUNCTIONS
- Workload
-
Session/Thread
- SESSION_STAT
- GLOBAL_SESSION_STAT
- SESSION_TIME
- GLOBAL_SESSION_TIME
- SESSION_MEMORY
- GLOBAL_SESSION_MEMORY
- SESSION_MEMORY_DETAIL
- GLOBAL_SESSION_MEMORY_DETAIL
- SESSION_STAT_ACTIVITY
- GLOBAL_SESSION_STAT_ACTIVITY
- THREAD_WAIT_STATUS
- GLOBAL_THREAD_WAIT_STATUS
- LOCAL_THREADPOOL_STATUS
- GLOBAL_THREADPOOL_STATUS
- LOCAL_ACTIVE_SESSION
- Transaction
- Query
-
Cache/IO
- STATIO_USER_TABLES
- SUMMARY_STATIO_USER_TABLES
- GLOBAL_STATIO_USER_TABLES
- STATIO_USER_INDEXES
- SUMMARY_STATIO_USER_INDEXES
- GLOBAL_STATIO_USER_INDEXES
- STATIO_USER_SEQUENCES
- SUMMARY_STATIO_USER_SEQUENCES
- GLOBAL_STATIO_USER_SEQUENCES
- STATIO_SYS_TABLES
- SUMMARY_STATIO_SYS_TABLES
- GLOBAL_STATIO_SYS_TABLES
- STATIO_SYS_INDEXES
- SUMMARY_STATIO_SYS_INDEXES
- GLOBAL_STATIO_SYS_INDEXES
- STATIO_SYS_SEQUENCES
- SUMMARY_STATIO_SYS_SEQUENCES
- GLOBAL_STATIO_SYS_SEQUENCES
- STATIO_ALL_TABLES
- SUMMARY_STATIO_ALL_TABLES
- GLOBAL_STATIO_ALL_TABLES
- STATIO_ALL_INDEXES
- SUMMARY_STATIO_ALL_INDEXES
- GLOBAL_STATIO_ALL_INDEXES
- STATIO_ALL_SEQUENCES
- SUMMARY_STATIO_ALL_SEQUENCES
- GLOBAL_STATIO_ALL_SEQUENCES
-
Utility
- REPLICATION_STAT
- GLOBAL_REPLICATION_STAT
- REPLICATION_SLOTS
- GLOBAL_REPLICATION_SLOTS
- BGWRITER_STAT
- GLOBAL_BGWRITER_STAT
- GLOBAL_CKPT_STATUS
- GLOBAL_DOUBLE_WRITE_STATUS
- GLOBAL_PAGEWRITER_STATUS
- GLOBAL_RECORD_RESET_TIME
- GLOBAL_REDO_STATUS
- GLOBAL_RECOVERY_STATUS
- CLASS_VITAL_INFO
- USER_LOGIN
- SUMMARY_USER_LOGIN
- GLOBAL_SINGLE_FLUSH_DW_STATUS
- GLOBAL_CANDIDATE_STATUS
- PARALLEL_DECODE_STATUS
- GLOBAL_PARALLEL_DECODE_STATUS
- PARALLEL_DECODE_THREAD_INFO
- GLOBAL_PARALLEL_DECODE_THREAD_INFO
- Lock
- Wait Events
- Configuration
- Operator
- Workload Manager
- Global Plancache
- RTO & RPO
- AI Watchdog
- 废弃
-
DBE_PLDEBUGGER Schema
- DBE_PLDEBUGGER.turn_on
- DBE_PLDEBUGGER.turn_off
- DBE_PLDEBUGGER.local_debug_server_info
- DBE_PLDEBUGGER.attach
- DBE_PLDEBUGGER.info_locals
- DBE_PLDEBUGGER.next
- DBE_PLDEBUGGER.continue
- DBE_PLDEBUGGER.abort
- DBE_PLDEBUGGER.print_var
- DBE_PLDEBUGGER.info_code
- DBE_PLDEBUGGER.step
- DBE_PLDEBUGGER.add_breakpoint
- DBE_PLDEBUGGER.delete_breakpoint
- DBE_PLDEBUGGER.info_breakpoints
- DBE_PLDEBUGGER.backtrace
- DBE_PLDEBUGGER.enable_breakpoint
- DBE_PLDEBUGGER.disable_breakpoint
- DBE_PLDEBUGGER.finish
- DBE_PLDEBUGGER.set_var
- DB4AI Schema
- DBE_PLDEVELOPER
- DBE_SQL_UTIL Schema
-
配置运行参数
- 查看参数
- 设置参数
-
GUC参数说明
- GUC使用说明
- 文件位置
- 连接和认证
- 资源消耗
- 数据导入导出
- 预写式日志
- 双机复制
- 查询规划
- 错误报告和日志
- 告警检测
- 运行时统计
- 自动清理
- 客户端连接缺省设置
- 锁管理
- 版本和平台兼容性
- 容错性
- 连接池参数
- 事务
- 双数据库实例复制参数
- 开发人员选项
- 审计
- CM相关参数
- 升级参数
- 其它选项
- 等待事件
- Query
- 系统性能快照
- 安全配置
- 全局临时表
- HyperLogLog
- 用户自定义函数
- 定时任务
- 线程池
- 备份恢复
- Undo
- DCF参数设置
- 闪回相关参数
- 回滚相关参数
- 预留参数
- AI特性
- Global SysCache参数
- 高效数据压缩算法相关参数
- 备机数据修复
- 分隔符
- Global PLsql Cache特性参数
-
开发指南(分布式_V2.0-2.x)
- 数据库系统概述
- 管理数据库安全
- 数据库使用入门
- 开发设计建议
-
应用程序开发教程
- 开发规范
- 驱动包获取
-
基于JDBC开发
- JDBC包、驱动类和环境类
- 开发流程
- 加载驱动
- 连接数据库
- 连接数据库(以SSL方式)
- 连接数据库(以UDS方式)
- 执行SQL语句
- 处理结果集
- 关闭数据库连接
- 日志管理
- 示例:常用操作
- 示例:重新执行应用SQL
- 示例:通过本地文件导入导出数据
- 示例:从MYSQL进行数据迁移
- 示例:逻辑复制代码示例
- 示例:不同场景下连接数据库参数配置
-
JDBC接口参考
- java.sql.Connection
- java.sql.CallableStatement
- java.sql.DatabaseMetaData
- java.sql.Driver
- java.sql.PreparedStatement
- java.sql.ResultSet
- java.sql.ResultSetMetaData
- java.sql.Statement
- javax.sql.ConnectionPoolDataSource
- javax.sql.DataSource
- javax.sql.PooledConnection
- javax.naming.Context
- javax.naming.spi.InitialContextFactory
- CopyManager
- PGReplicationConnection
- PGReplicationStream
- ChainedStreamBuilder
- ChainedCommonStreamBuilder
- JDBC数据类型映射关系
- 常见问题处理
- 基于ODBC开发
- 基于libpq开发
- 基于Psycopg开发
- 调试
- SQL调优指南
-
SQL参考
- GaussDB SQL
- 关键字
- 数据类型
- 常量与宏
-
函数和操作符
- 逻辑操作符
- 比较操作符
- 字符处理函数和操作符
- 二进制字符串函数和操作符
- 位串函数和操作符
- 模式匹配操作符
- 数字操作函数和操作符
- 时间和日期处理函数和操作符
- 类型转换函数
- 几何函数和操作符
- 网络地址函数和操作符
- JSON/JSONB函数和操作符
- HLL函数和操作符
- SEQUENCE函数
- 数组函数和操作符
- 范围函数和操作符
- 聚集函数
- 窗口函数
- 安全函数
- 返回集合的函数
- 条件表达式函数
- 系统信息函数
- 系统管理函数
- 统计信息函数
- 触发器函数
- HashFunc函数
- 提示信息函数
- 故障注入系统函数
- 重分布函数
- 分布列推荐函数
- 其他系统函数
- 内部函数
- 动态数据脱敏函数
- hotkey特性函数
- Global SysCache特性函数
- 数据损坏检测修复函数
- 废弃函数
- 表达式
- 类型转换
- 系统操作
- 事务控制
- DDL语法一览表
- DML语法一览表
- DCL语法一览表
-
SQL语法
- ABORT
- ALTER AUDIT POLICY
- ALTER COORDINATOR
- ALTER DATABASE
- ALTER DEFAULT PRIVILEGES
- ALTER DIRECTORY
- ALTER FUNCTION
- ALTER GLOBAL CONFIGURATION
- ALTER GROUP
- ALTER INDEX
- ALTER LANGUAGE
- ALTER MASKING POLICY
- ALTER MATERIALIZED VIEW
- ALTER NODE
- ALTER NODE GROUP
- ALTER RESOURCE LABEL
- ALTER ROLE
- ALTER ROW LEVEL SECURITY POLICY
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- ALTER SYNONYM
- ALTER SYSTEM KILL SESSION
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TABLESPACE
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER VIEW
- ANALYZE | ANALYSE
- BEGIN
- CALL
- CHECKPOINT
- CLEAN CONNECTION
- CLOSE
- CLUSTER
- COMMENT
- COMMIT | END
- COMMIT PREPARED
- COPY
- CREATE AUDIT POLICY
- CREATE BARRIER
- CREATE CONVERSION
- CREATE DATABASE
- CREATE DIRECTORY
- CREATE FUNCTION
- CREATE GROUP
- CREATE INCREMENTAL MATERIALIZED VIEW
- CREATE INDEX
- CREATE LANGUAGE
- CREATE MASKING POLICY
- CREATE MATERIALIZED VIEW
- CREATE NODE
- CREATE NODE GROUP
- CREATE PROCEDURE
- CREATE RESOURCE LABEL
- CREATE ROLE
- CREATE ROW LEVEL SECURITY POLICY
- CREATE SCHEMA
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLESPACE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE VIEW
- CREATE WEAK PASSWORD DICTIONARY
- CURSOR
- DEALLOCATE
- DECLARE
- DELETE
- DO
- DROP AUDIT POLICY
- DROP DATABASE
- DROP DIRECTORY
- DROP FUNCTION
- DROP GLOBAL CONFIGURATION
- DROP GROUP
- DROP INDEX
- DROP LANGUAGE
- DROP MASKING POLICY
- DROP MATERIALIZED VIEW
- DROP NODE
- DROP NODE GROUP
- DROP OWNED
- DROP PROCEDURE
- DROP RESOURCE LABEL
- DROP ROLE
- DROP ROW LEVEL SECURITY POLICY
- DROP SCHEMA
- DROP SEQUENCE
- DROP SERVER
- DROP SYNONYM
- DROP TABLE
- DROP TABLESPACE
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP VIEW
- DROP WEAK PASSWORD DICTIONARY
- EXECUTE
- EXECUTE DIRECT
- EXPLAIN
- EXPLAIN PLAN
- FETCH
- GRANT
- INSERT
- LOCK
- MOVE
- MERGE INTO
- PREPARE
- PREPARE TRANSACTION
- REASSIGN OWNED
- REINDEX
- REFRESH INCREMENTAL MATERIALIZED VIEW
- REFRESH MATERIALIZED VIEW
- RELEASE SAVEPOINT
- RESET
- REVOKE
- ROLLBACK
- ROLLBACK PREPARED
- ROLLBACK TO SAVEPOINT
- SAVEPOINT
- SELECT
- SELECT INTO
- SET
- SET CONSTRAINTS
- SET ROLE
- SET SESSION AUTHORIZATION
- SET TRANSACTION
- SHOW
- SHUTDOWN
- START TRANSACTION
- TRUNCATE
- UPDATE
- VACUUM
- VALUES
- 附录
- 最佳实践
- 用户自定义函数
- 存储过程
- 自治事务
-
系统表和系统视图
- 系统表和系统视图概述
-
系统表
- GS_AUDITING_POLICY
- GS_AUDITING_POLICY_ACCESS
- GS_AUDITING_POLICY_FILTERS
- GS_AUDITING_POLICY_PRIVILEGES
- GS_ASP
- GS_DB_PRIVILEGE
- GS_GLOBAL_CONFIG
- GS_JOB_ATTRIBUTE
- GS_JOB_ARGUMENT
- GS_MASKING_POLICY
- GS_MASKING_POLICY_ACTIONS
- GS_MASKING_POLICY_FILTERS
- GS_MATVIEW
- GS_MATVIEW_DEPENDENCY
- GS_OPT_MODEL
- GS_POLICY_LABEL
- GS_RECYCLEBIN
- GS_SQL_PATCH
- GS_TXN_SNAPSHOT
- GS_UID
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_APP_WORKLOADGROUP_MAPPING
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_AUTHID
- PG_AUTH_HISTORY
- PG_AUTH_MEMBERS
- PG_CAST
- PG_CLASS
- PG_COLLATION
- PG_CONSTRAINT
- PG_CONVERSION
- PG_DATABASE
- PG_DB_ROLE_SETTING
- PG_DEFAULT_ACL
- PG_DEPEND
- PG_DESCRIPTION
- PG_DIRECTORY
- PG_ENUM
- PG_FOREIGN_SERVER
- PG_HASHBUCKET
- PG_INDEX
- PG_INHERITS
- PG_JOB
- PG_JOB_PROC
- PG_LANGUAGE
- PG_LARGEOBJECT
- PG_LARGEOBJECT_METADATA
- PG_NAMESPACE
- PG_OBJECT
- PG_OPCLASS
- PG_OPERATOR
- PG_OPFAMILY
- PG_PARTITION
- PG_PLTEMPLATE
- PG_PROC
- PG_RANGE
- PG_REPLICATION_ORIGIN
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_RLSPOLICY
- PG_SECLABEL
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_SHSECLABEL
- PG_STATISTIC
- PG_STATISTIC_EXT
- PG_SYNONYM
- PG_TABLESPACE
- PG_TRIGGER
- PG_TS_CONFIG
- PG_TS_CONFIG_MAP
- PG_TS_DICT
- PG_TS_PARSER
- PG_TS_TEMPLATE
- PG_TYPE
- PG_USER_MAPPING
- PG_USER_STATUS
- PG_WORKLOAD_GROUP
- PGXC_CLASS
- PGXC_GROUP
- PGXC_NODE
- PGXC_REDISTB
- PGXC_SLICE
- PLAN_TABLE_DATA
- STATEMENT_HISTORY
- STREAMING_STREAM
- STREAMING_CONT_QUERY
- STREAMING_REAPER_STATUS
-
系统视图
- ADM_COL_COMMENTS
- ADM_CONS_COLUMNS
- ADM_CONSTRAINTS
- ADM_DATA_FILES
- ADM_HIST_SNAPSHOT
- ADM_HIST_SQL_PLAN
- ADM_HIST_SQLSTAT
- ADM_IND_COLUMNS
- ADM_IND_EXPRESSIONS
- ADM_IND_PARTITIONS
- ADM_INDEXES
- ADM_OBJECTS
- ADM_PART_INDEXES
- ADM_PART_TABLES
- ADM_PROCEDURES
- ADM_SCHEDULER_JOBS
- ADM_SEQUENCES
- ADM_SOURCE
- ADM_SYNONYMS
- ADM_TAB_COLUMNS
- ADM_TAB_COMMENTS
- ADM_TAB_PARTITIONS
- ADM_TABLES
- ADM_TABLESPACES
- ADM_TRIGGERS
- ADM_TYPE_ATTRS
- ADM_USERS
- ADM_VIEWS
- COMM_CLIENT_INFO
- DB_ALL_TABLES
- DB_COL_COMMENTS
- DB_CONS_COLUMNS
- DB_CONSTRAINTS
- DB_DEPENDENCIES
- DB_IND_COLUMNS
- DB_IND_EXPRESSIONS
- DB_INDEXES
- DB_OBJECTS
- DB_PROCEDURES
- DB_SEQUENCES
- DB_SOURCE
- DB_SYNONYMS
- DB_TAB_COLUMNS
- DB_TAB_COMMENTS
- DB_TABLES
- DB_TRIGGERS
- DB_USERS
- DB_VIEWS
- DV_SESSION_LONGOPS
- DV_SESSIONS
- GET_GLOBAL_PREPARED_XACTS
- GLOBAL_BAD_BLOCK_INFO
- GLOBAL_CLEAR_BAD_BLOCK_INFO
- GLOBAL_COMM_CLIENT_INFO
- GLOBAL_STAT_HOTKEYS_INFO
- GLOBAL_WAL_SENDER_STATUS
- GS_ALL_CONTROL_GROUP_INFO
- GS_AUDITING
- GS_AUDITING_ACCESS
- GS_AUDITING_PRIVILEGE
- GS_CLUSTER_RESOURCE_INFO
- GS_DB_PRIVILEGES
- GS_GET_CONTROL_GROUP_INFO
- GS_GSC_MEMORY_DETAIL
- GS_LABELS
- GS_LSC_MEMORY_DETAIL
- GS_MASKING
- GS_MATVIEWS
- GS_SQL_COUNT
- GS_STAT_DB_CU
- GS_STAT_SESSION_CU
- GS_TOTAL_NODEGROUP_MEMORY_DETAIL
- GV_SESSION
- MPP_TABLES
- MY_COL_COMMENTS
- MY_CONS_COLUMNS
- MY_CONSTRAINTS
- MY_IND_COLUMNS
- MY_IND_EXPRESSIONS
- MY_IND_PARTITIONS
- MY_INDEXES
- MY_JOBS
- MY_OBJECTS
- MY_PART_INDEXES
- MY_PART_TABLES
- MY_PROCEDURES
- MY_SEQUENCES
- MY_SOURCE
- MY_SYNONYMS
- MY_TAB_COLUMNS
- MY_TAB_COMMENTS
- MY_TAB_PARTITIONS
- MY_TABLES
- MY_TRIGGERS
- MY_VIEWS
- PG_COMM_DELAY
- PG_COMM_RECV_STREAM
- PG_COMM_SEND_STREAM
- PG_COMM_STATUS
- PG_CONTROL_GROUP_CONFIG
- PG_CURSORS
- PG_EXT_STATS
- PG_GET_INVALID_BACKENDS
- PG_GET_SENDERS_CATCHUP_TIME
- PG_GROUP
- PG_INDEXES
- PG_LOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_POOLER_STATUS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_REPLICATION_ORIGIN_STATUS
- PG_REPLICATION_SLOTS
- PG_RLSPOLICIES
- PG_ROLES
- PG_RULES
- PG_RUNNING_XACTS
- PG_SECLABELS
- PG_SETTINGS
- PG_SHADOW
- PG_SHARED_MEMORY_DETAIL
- PG_STATS
- PG_STAT_ACTIVITY
- PG_STAT_ACTIVITY_NG
- PG_STAT_ALL_INDEXES
- PG_STAT_ALL_TABLES
- PG_STAT_BAD_BLOCK
- PG_STAT_BGWRITER
- PG_STAT_DATABASE
- PG_STAT_DATABASE_CONFLICTS
- PG_STAT_REPLICATION
- PG_STAT_SYS_INDEXES
- PG_STAT_SYS_TABLES
- PG_STAT_USER_FUNCTIONS
- PG_STAT_USER_INDEXES
- PG_STAT_USER_TABLES
- PG_STAT_XACT_ALL_TABLES
- PG_STAT_XACT_SYS_TABLES
- PG_STAT_XACT_USER_FUNCTIONS
- PG_STAT_XACT_USER_TABLES
- PG_STATIO_ALL_INDEXES
- PG_STATIO_ALL_SEQUENCES
- PG_STATIO_ALL_TABLES
- PG_STATIO_SYS_INDEXES
- PG_STATIO_SYS_SEQUENCES
- PG_STATIO_SYS_TABLES
- PG_STATIO_USER_INDEXES
- PG_STATIO_USER_SEQUENCES
- PG_STATIO_USER_TABLES
- PG_TABLES
- PG_TDE_INFO
- PG_TIMEZONE_ABBREVS
- PG_TIMEZONE_NAMES
- PG_TOTAL_MEMORY_DETAIL
- PG_TOTAL_USER_RESOURCE_INFO
- PG_TOTAL_USER_RESOURCE_INFO_OID
- PG_USER
- PG_USER_MAPPINGS
- PG_VARIABLE_INFO
- PG_VIEWS
- PGXC_COMM_DELAY
- PGXC_COMM_RECV_STREAM
- PGXC_COMM_SEND_STREAM
- PGXC_COMM_STATUS
- PGXC_GET_STAT_ALL_TABLES
- PGXC_GET_TABLE_SKEWNESS
- PGXC_NODE_ENV
- PGXC_OS_THREADS
- PGXC_PREPARED_XACTS
- PGXC_RUNNING_XACTS
- PGXC_SQL_COUNT
- PGXC_STAT_ACTIVITY
- PGXC_STAT_BAD_BLOCK
- PGXC_THREAD_WAIT_STATUS
- PGXC_TOTAL_MEMORY_DETAIL
- PGXC_VARIABLE_INFO
- PLAN_TABLE
- PV_FILE_STAT
- PV_INSTANCE_TIME
- PV_OS_RUN_INFO
- PV_REDO_STAT
- PV_SESSION_MEMORY
- PV_SESSION_MEMORY_CONTEXT
- PV_SESSION_MEMORY_DETAIL
- PV_SESSION_STAT
- PV_SESSION_TIME
- PV_THREAD_MEMORY_CONTEXT
- PV_TOTAL_MEMORY_DETAIL
- SYS_DUMMY
-
Schema
- Information Schema
-
DBE_PERF Schema
- OS
- Instance
- Memory
- File
-
Object
- STAT_USER_TABLES
- SUMMARY_STAT_USER_TABLES
- GLOBAL_STAT_USER_TABLES
- STAT_USER_INDEXES
- SUMMARY_STAT_USER_INDEXES
- GLOBAL_STAT_USER_INDEXES
- STAT_SYS_TABLES
- SUMMARY_STAT_SYS_TABLES
- GLOBAL_STAT_SYS_TABLES
- STAT_SYS_INDEXES
- SUMMARY_STAT_SYS_INDEXES
- GLOBAL_STAT_SYS_INDEXES
- STAT_ALL_TABLES
- SUMMARY_STAT_ALL_TABLES
- GLOBAL_STAT_ALL_TABLES
- STAT_ALL_INDEXES
- SUMMARY_STAT_ALL_INDEXES
- GLOBAL_STAT_ALL_INDEXES
- STAT_DATABASE
- SUMMARY_STAT_DATABASE
- GLOBAL_STAT_DATABASE
- STAT_DATABASE_CONFLICTS
- SUMMARY_STAT_DATABASE_CONFLICTS
- GLOBAL_STAT_DATABASE_CONFLICTS
- STAT_XACT_ALL_TABLES
- SUMMARY_STAT_XACT_ALL_TABLES
- GLOBAL_STAT_XACT_ALL_TABLES
- STAT_XACT_SYS_TABLES
- SUMMARY_STAT_XACT_SYS_TABLES
- GLOBAL_STAT_XACT_SYS_TABLES
- STAT_XACT_USER_TABLES
- SUMMARY_STAT_XACT_USER_TABLES
- GLOBAL_STAT_XACT_USER_TABLES
- STAT_XACT_USER_FUNCTIONS
- SUMMARY_STAT_XACT_USER_FUNCTIONS
- GLOBAL_STAT_XACT_USER_FUNCTIONS
- STAT_BAD_BLOCK
- SUMMARY_STAT_BAD_BLOCK
- GLOBAL_STAT_BAD_BLOCK
- STAT_USER_FUNCTIONS
- SUMMARY_STAT_USER_FUNCTIONS
- GLOBAL_STAT_USER_FUNCTIONS
- Workload
-
Session/Thread
- SESSION_STAT
- GLOBAL_SESSION_STAT
- SESSION_TIME
- GLOBAL_SESSION_TIME
- SESSION_MEMORY
- GLOBAL_SESSION_MEMORY
- SESSION_MEMORY_DETAIL
- GLOBAL_SESSION_MEMORY_DETAIL
- THREAD_WAIT_STATUS
- GLOBAL_THREAD_WAIT_STATUS
- LOCAL_THREADPOOL_STATUS
- GLOBAL_THREADPOOL_STATUS
- SESSION_CPU_RUNTIME
- SESSION_MEMORY_RUNTIME
- LOCAL_ACTIVE_SESSION
- GLOBAL_ACTIVE_SESSION
- Transaction
- Query
-
Cache/IO
- STATIO_USER_TABLES
- SUMMARY_STATIO_USER_TABLES
- GLOBAL_STATIO_USER_TABLES
- STATIO_USER_INDEXES
- SUMMARY_STATIO_USER_INDEXES
- GLOBAL_STATIO_USER_INDEXES
- STATIO_USER_SEQUENCES
- SUMMARY_STATIO_USER_SEQUENCES
- GLOBAL_STATIO_USER_SEQUENCES
- STATIO_SYS_TABLES
- SUMMARY_STATIO_SYS_TABLES
- GLOBAL_STATIO_SYS_TABLES
- STATIO_SYS_INDEXES
- SUMMARY_STATIO_SYS_INDEXES
- GLOBAL_STATIO_SYS_INDEXES
- STATIO_SYS_SEQUENCES
- SUMMARY_STATIO_SYS_SEQUENCES
- GLOBAL_STATIO_SYS_SEQUENCES
- STATIO_ALL_TABLES
- SUMMARY_STATIO_ALL_TABLES
- GLOBAL_STATIO_ALL_TABLES
- STATIO_ALL_INDEXES
- SUMMARY_STATIO_ALL_INDEXES
- GLOBAL_STATIO_ALL_INDEXES
- STATIO_ALL_SEQUENCES
- SUMMARY_STATIO_ALL_SEQUENCES
- GLOBAL_STATIO_ALL_SEQUENCES
- GLOBAL_STAT_DB_CU
- GLOBAL_STAT_SESSION_CU
- Comm
-
Utility
- REPLICATION_STAT
- GLOBAL_REPLICATION_STAT
- REPLICATION_SLOTS
- GLOBAL_REPLICATION_SLOTS
- BGWRITER_STAT
- GLOBAL_BGWRITER_STAT
- POOLER_STATUS
- GLOBAL_COMM_CHECK_CONNECTION_STATUS
- GLOBAL_CKPT_STATUS
- GLOBAL_DOUBLE_WRITE_STATUS
- GLOBAL_PAGEWRITER_STATUS
- GLOBAL_POOLER_STATUS
- GLOBAL_RECORD_RESET_TIME
- GLOBAL_REDO_STATUS
- GLOBAL_RECOVERY_STATUS
- CLASS_VITAL_INFO
- USER_LOGIN
- SUMMARY_USER_LOGIN
- GLOBAL_GET_BGWRITER_STATUS
- GLOBAL_SINGLE_FLUSH_DW_STATUS
- GLOBAL_CANDIDATE_STATUS
- Lock
- Wait Events
- Configuration
- Operator
- Global Plancache
- RTO & RPO
- 逻辑复制
- GTM模式
- 物化视图
- 错误日志信息参考
- 配置运行参数
-
开发指南(集中式_V2.0-2.x)
- 数据库系统概述
- 管理数据库安全
- 数据库使用入门
- 开发设计建议
-
应用程序开发教程
- GaussDB应用程序开发教程概述
- 开发规范
- 驱动包获取
-
基于JDBC开发
- 开发流程
- 开发步骤
- 典型应用开发示例
-
JDBC接口参考
- java.sql.Connection
- java.sql.CallableStatement
- java.sql.DatabaseMetaData
- java.sql.Driver
- java.sql.PreparedStatement
- java.sql.ResultSet
- java.sql.ResultSetMetaData
- java.sql.Statement
- javax.sql.ConnectionPoolDataSource
- javax.sql.DataSource
- javax.sql.PooledConnection
- javax.naming.Context
- javax.naming.spi.InitialContextFactory
- CopyManager
- PGReplicationConnection
- PGReplicationStream
- ChainedStreamBuilder
- ChainedCommonStreamBuilder
- 基于ODBC开发
- 基于libpq开发
- 基于Psycopg开发
- 基于Go驱动开发
- 附录
- SQL调优指南
-
SQL参考
- GaussDB SQL
- 关键字
- 数据类型
- 常量与宏
-
函数和操作符
- 逻辑操作符
- 比较操作符
- 字符处理函数和操作符
- 二进制字符串函数和操作符
- 位串函数和操作符
- 模式匹配操作符
- 数字操作函数和操作符
- 时间和日期处理函数和操作符
- 类型转换函数
- 几何函数和操作符
- 网络地址函数和操作符
- JSON/JSONB函数和操作符
- HLL函数和操作符
- SEQUENCE函数
- 数组函数和操作符
- 范围函数和操作符
- 聚集函数
- 窗口函数
- 安全函数
- 返回集合的函数
- 条件表达式函数
- 系统信息函数
- 系统管理函数
- 统计信息函数
- 触发器函数
- HashFunc函数
- 提示信息函数
- 全局临时表函数
- 故障注入系统函数
- AI特性函数
- 动态数据脱敏函数
- 层次递归查询函数
- 其他系统函数
- 内部函数
- Global SysCache特性函数
- 数据损坏检测修复函数
- 废弃函数
- 表达式
- 类型转换
- 系统操作
- 事务控制
- DDL语法一览表
- DML语法一览表
- DCL语法一览表
-
SQL语法
- ABORT
- ALTER AGGREGATE
- ALTER AUDIT POLICY
- ALTER DATABASE
- ALTER DEFAULT PRIVILEGES
- ALTER DIRECTORY
- ALTER FUNCTION
- ALTER GLOBAL CONFIGURATION
- ALTER GROUP
- ALTER INDEX
- ALTER LANGUAGE
- ALTER MASKING POLICY
- ALTER MATERIALIZED VIEW
- ALTER OPERATOR
- ALTER PACKAGE
- ALTER PROCEDURE
- ALTER RESOURCE LABEL
- ALTER ROLE
- ALTER ROW LEVEL SECURITY POLICY
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- ALTER SYNONYM
- ALTER SYSTEM KILL SESSION
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TABLE SUBPARTITION
- ALTER TABLESPACE
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER USER MAPPING
- ALTER VIEW
- ANALYZE | ANALYSE
- BEGIN
- CALL
- CHECKPOINT
- CLEAN CONNECTION
- CLOSE
- CLUSTER
- COMMENT
- COMMIT | END
- COMMIT PREPARED
- COPY
- CREATE AGGREGATE
- CREATE AUDIT POLICY
- CREATE CAST
- CREATE CONVERSION
- CREATE DATABASE
- CREATE DIRECTORY
- CREATE FUNCTION
- CREATE GROUP
- CREATE INCREMENTAL MATERIALIZED VIEW
- CREATE INDEX
- CREATE LANGUAGE
- CREATE MASKING POLICY
- CREATE MATERIALIZED VIEW
- CREATE OPERATOR
- CREATE OPERATOR CLASS
- CREATE PACKAGE
- CREATE PROCEDURE
- CREATE RESOURCE LABEL
- CREATE ROLE
- CREATE ROW LEVEL SECURITY POLICY
- CREATE RULE
- CREATE SCHEMA
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TABLESPACE
- CREATE TABLE SUBPARTITION
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE USER MAPPING
- CREATE VIEW
- CREATE WEAK PASSWORD DICTIONARY
- CURSOR
- DEALLOCATE
- DECLARE
- DELETE
- DO
- DROP AGGREGATE
- DROP AUDIT POLICY
- DROP CAST
- DROP DATABASE
- DROP DIRECTORY
- DROP FUNCTION
- DROP GLOBAL CONFIGURATION
- DROP GROUP
- DROP INDEX
- DROP LANGUAGE
- DROP MASKING POLICY
- DROP MATERIALIZED VIEW
- DROP OPERATOR
- DROP OWNED
- DROP PACKAGE
- DROP PROCEDURE
- DROP RESOURCE LABEL
- DROP ROLE
- DROP ROW LEVEL SECURITY POLICY
- DROP RULE
- DROP SCHEMA
- DROP SEQUENCE
- DROP SERVER
- DROP SYNONYM
- DROP TABLE
- DROP TABLESPACE
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP USER MAPPING
- DROP VIEW
- DROP WEAK PASSWORD DICTIONARY
- EXECUTE
- EXPLAIN
- EXPLAIN PLAN
- FETCH
- GRANT
- INSERT
- LOCK
- MERGE INTO
- MOVE
- PREPARE
- PREPARE TRANSACTION
- PURGE
- REASSIGN OWNED
- REFRESH INCREMENTAL MATERIALIZED VIEW
- REFRESH MATERIALIZED VIEW
- REINDEX
- RELEASE SAVEPOINT
- RESET
- REVOKE
- ROLLBACK
- ROLLBACK PREPARED
- ROLLBACK TO SAVEPOINT
- SAVEPOINT
- SELECT
- SELECT INTO
- SET
- SET CONSTRAINTS
- SET ROLE
- SET SESSION AUTHORIZATION
- SET TRANSACTION
- SHOW
- SHUTDOWN
- START TRANSACTION
- TIMECAPSULE TABLE
- TRUNCATE
- UPDATE
- VACUUM
- VALUES
- 附录
- 最佳实践
- 用户自定义函数
- 存储过程
- 自治事务
-
系统表和系统视图
- 系统表和系统视图概述
-
系统表
- GS_ASP
- GS_AUDITING_POLICY
- GS_AUDITING_POLICY_ACCESS
- GS_AUDITING_POLICY_FILTERS
- GS_AUDITING_POLICY_PRIVILEGES
- GS_DB_PRIVILEGE
- GS_GLOBAL_CONFIG
- GS_JOB_ARGUMENT
- GS_JOB_ATTRIBUTE
- GS_MASKING_POLICY
- GS_MASKING_POLICY_ACTIONS
- GS_MASKING_POLICY_FILTERS
- GS_MATVIEW
- GS_MATVIEW_DEPENDENCY
- GS_OPT_MODEL
- GS_PACKAGE
- GS_POLICY_LABEL
- GS_RECYCLEBIN
- GS_SQL_PATCH
- GS_TXN_SNAPSHOT
- GS_UID
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_APP_WORKLOADGROUP_MAPPING
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_AUTHID
- PG_AUTH_HISTORY
- PG_AUTH_MEMBERS
- PG_CAST
- PG_CLASS
- PG_COLLATION
- PG_CONSTRAINT
- PG_CONVERSION
- PG_DATABASE
- PG_DB_ROLE_SETTING
- PG_DEFAULT_ACL
- PG_DEPEND
- PG_DESCRIPTION
- PG_DIRECTORY
- PG_ENUM
- PG_FOREIGN_SERVER
- PG_HASHBUCKET
- PG_INDEX
- PG_INHERITS
- PG_JOB
- PG_JOB_PROC
- PG_LANGUAGE
- PG_LARGEOBJECT
- PG_LARGEOBJECT_METADATA
- PG_NAMESPACE
- PG_OBJECT
- PG_OPCLASS
- PG_OPERATOR
- PG_OPFAMILY
- PG_PARTITION
- PG_PLTEMPLATE
- PG_PROC
- PG_RANGE
- PG_REPLICATION_ORIGIN
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_RLSPOLICY
- PG_SECLABEL
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_SHSECLABEL
- PG_STATISTIC
- PG_STATISTIC_EXT
- PG_SYNONYM
- PG_TABLESPACE
- PG_TRIGGER
- PG_TS_CONFIG
- PG_TS_CONFIG_MAP
- PG_TS_DICT
- PG_TS_PARSER
- PG_TS_TEMPLATE
- PG_TYPE
- PG_USER_MAPPING
- PG_USER_STATUS
- PG_WORKLOAD_GROUP
- PGXC_CLASS
- PGXC_GROUP
- PGXC_NODE
- PGXC_SLICE
- PLAN_TABLE_DATA
- STATEMENT_HISTORY
- STREAMING_STREAM
- STREAMING_CONT_QUERY
- STREAMING_REAPER_STATUS
-
系统视图
- ADM_COL_COMMENTS
- ADM_CONS_COLUMNS
- ADM_CONSTRAINTS
- ADM_DATA_FILES
- ADM_HIST_SNAPSHOT
- ADM_HIST_SQL_PLAN
- ADM_HIST_SQLSTAT
- ADM_IND_COLUMNS
- ADM_IND_EXPRESSIONS
- ADM_IND_PARTITIONS
- ADM_IND_SUBPARTITIONS
- ADM_INDEXES
- ADM_OBJECTS
- ADM_PART_INDEXES
- ADM_PART_TABLES
- ADM_PROCEDURES
- ADM_SCHEDULER_JOBS
- ADM_SEQUENCES
- ADM_SOURCE
- ADM_SYNONYMS
- ADM_TAB_COLUMNS
- ADM_TAB_COMMENTS
- ADM_TAB_PARTITIONS
- ADM_TAB_SUBPARTITIONS
- ADM_TABLES
- ADM_TABLESPACES
- ADM_TRIGGERS
- ADM_TYPE_ATTRS
- ADM_USERS
- ADM_VIEWS
- DB_ALL_TABLES
- DB_COL_COMMENTS
- DB_CONS_COLUMNS
- DB_CONSTRAINTS
- DB_DEPENDENCIES
- DB_IND_COLUMNS
- DB_IND_EXPRESSIONS
- DB_IND_PARTITIONS
- DB_IND_SUBPARTITIONS
- DB_INDEXES
- DB_OBJECTS
- DB_PART_INDEXES
- DB_PART_TABLES
- DB_PROCEDURES
- DB_SEQUENCES
- DB_SOURCE
- DB_SYNONYMS
- DB_TAB_COLUMNS
- DB_TAB_COMMENTS
- DB_TAB_PARTITIONS
- DB_TAB_SUBPARTITIONS
- DB_TABLES
- DB_TRIGGERS
- DB_USERS
- DB_VIEWS
- DV_SESSIONS
- DV_SESSION_LONGOPS
- GET_GLOBAL_PREPARED_XACTS(废弃)
- GS_ALL_CONTROL_GROUP_INFO
- GS_AUDITING
- GS_AUDITING_ACCESS
- GS_AUDITING_PRIVILEGE
- GS_CLUSTER_RESOURCE_INFO
- GS_COMM_PROXY_THREAD_STATUS
- GS_DB_PRIVILEGES
- GS_FILE_STAT
- GS_GET_CONTROL_GROUP_INFO
- GS_GSC_MEMORY_DETAIL
- GS_INSTANCE_TIME
- GS_LABELS
- GS_LSC_MEMORY_DETAIL
- GS_MASKING
- GS_MATVIEWS
- GS_OS_RUN_INFO
- GS_REDO_STAT
- GS_SESSION_MEMORY
- GS_SESSION_MEMORY_CONTEXT
- GS_SESSION_MEMORY_DETAIL
- GS_SESSION_STAT
- GS_SESSION_TIME
- GS_SQL_COUNT
- GS_STAT_SESSION_CU
- GS_THREAD_MEMORY_CONTEXT
- GS_TOTAL_MEMORY_DETAIL
- GS_TOTAL_NODEGROUP_MEMORY_DETAIL
- GV_SESSION
- MPP_TABLES
- MY_COL_COMMENTS
- MY_CONS_COLUMNS
- MY_CONSTRAINTS
- MY_IND_COLUMNS
- MY_IND_EXPRESSIONS
- MY_IND_PARTITIONS
- MY_IND_SUBPARTITIONS
- MY_INDEXES
- MY_JOBS
- MY_OBJECTS
- MY_PART_INDEXES
- MY_PART_TABLES
- MY_PROCEDURES
- MY_SEQUENCES
- MY_SOURCE
- MY_SYNONYMS
- MY_TAB_COLUMNS
- MY_TAB_COMMENTS
- MY_TAB_PARTITIONS
- MY_TAB_SUBPARTITIONS
- MY_TABLES
- MY_TRIGGERS
- MY_VIEWS
- PG_CURSORS
- PG_COMM_DELAY
- PG_COMM_RECV_STREAM
- PG_COMM_SEND_STREAM
- PG_COMM_STATUS
- PG_CONTROL_GROUP_CONFIG
- PG_EXT_STATS
- PG_GET_INVALID_BACKENDS
- PG_GET_SENDERS_CATCHUP_TIME
- PG_GROUP
- PG_GTT_ATTACHED_PIDS
- PG_GTT_RELSTATS
- PG_GTT_STATS
- PG_INDEXES
- PG_LOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_REPLICATION_ORIGIN_STATUS
- PG_REPLICATION_SLOTS
- PG_RLSPOLICIES
- PG_ROLES
- PG_RULES
- PG_RUNNING_XACTS
- PG_SECLABELS
- PG_SETTINGS
- PG_SHADOW
- PG_STATS
- PG_STAT_ACTIVITY
- PG_STAT_ACTIVITY_NG
- PG_STAT_ALL_INDEXES
- PG_STAT_ALL_TABLES
- PG_STAT_BAD_BLOCK
- PG_STAT_BGWRITER
- PG_STAT_DATABASE
- PG_STAT_DATABASE_CONFLICTS
- PG_STAT_USER_FUNCTIONS
- PG_STAT_USER_INDEXES
- PG_STAT_USER_TABLES
- PG_STAT_REPLICATION
- PG_STAT_SYS_INDEXES
- PG_STAT_SYS_TABLES
- PG_STAT_XACT_ALL_TABLES
- PG_STAT_XACT_SYS_TABLES
- PG_STAT_XACT_USER_FUNCTIONS
- PG_STAT_XACT_USER_TABLES
- PG_STATIO_ALL_INDEXES
- PG_STATIO_ALL_SEQUENCES
- PG_STATIO_ALL_TABLES
- PG_STATIO_SYS_INDEXES
- PG_STATIO_SYS_SEQUENCES
- PG_STATIO_SYS_TABLES
- PG_STATIO_USER_INDEXES
- PG_STATIO_USER_SEQUENCES
- PG_STATIO_USER_TABLES
- PG_TABLES
- PG_TDE_INFO
- PG_TIMEZONE_ABBREVS
- PG_TIMEZONE_NAMES
- PG_TOTAL_MEMORY_DETAIL
- PG_TOTAL_USER_RESOURCE_INFO
- PG_TOTAL_USER_RESOURCE_INFO_OID
- PG_USER
- PG_USER_MAPPINGS
- PG_VARIABLE_INFO
- PG_VIEWS
- PGXC_PREPARED_XACTS
- PGXC_THREAD_WAIT_STATUS
- PLAN_TABLE
- SYS_DUMMY
-
Schema
- Information Schema
-
DBE_PERF Schema
- OS
- Instance
- Memory
- File
-
Object
- STAT_USER_TABLES
- SUMMARY_STAT_USER_TABLES
- GLOBAL_STAT_USER_TABLES
- STAT_USER_INDEXES
- SUMMARY_STAT_USER_INDEXES
- GLOBAL_STAT_USER_INDEXES
- STAT_SYS_TABLES
- SUMMARY_STAT_SYS_TABLES
- GLOBAL_STAT_SYS_TABLES
- STAT_SYS_INDEXES
- SUMMARY_STAT_SYS_INDEXES
- GLOBAL_STAT_SYS_INDEXES
- STAT_ALL_TABLES
- SUMMARY_STAT_ALL_TABLES
- GLOBAL_STAT_ALL_TABLES
- STAT_ALL_INDEXES
- SUMMARY_STAT_ALL_INDEXES
- GLOBAL_STAT_ALL_INDEXES
- STAT_DATABASE
- SUMMARY_STAT_DATABASE
- GLOBAL_STAT_DATABASE
- STAT_DATABASE_CONFLICTS
- SUMMARY_STAT_DATABASE_CONFLICTS
- GLOBAL_STAT_DATABASE_CONFLICTS
- STAT_XACT_ALL_TABLES
- SUMMARY_STAT_XACT_ALL_TABLES
- GLOBAL_STAT_XACT_ALL_TABLES
- STAT_XACT_SYS_TABLES
- SUMMARY_STAT_XACT_SYS_TABLES
- GLOBAL_STAT_XACT_SYS_TABLES
- STAT_XACT_USER_TABLES
- SUMMARY_STAT_XACT_USER_TABLES
- GLOBAL_STAT_XACT_USER_TABLES
- STAT_XACT_USER_FUNCTIONS
- SUMMARY_STAT_XACT_USER_FUNCTIONS
- GLOBAL_STAT_XACT_USER_FUNCTIONS
- STAT_BAD_BLOCK
- SUMMARY_STAT_BAD_BLOCK
- GLOBAL_STAT_BAD_BLOCK
- STAT_USER_FUNCTIONS
- SUMMARY_STAT_USER_FUNCTIONS
- GLOBAL_STAT_USER_FUNCTIONS
- Workload
-
Session/Thread
- SESSION_STAT
- GLOBAL_SESSION_STAT
- SESSION_TIME
- GLOBAL_SESSION_TIME
- SESSION_MEMORY
- GLOBAL_SESSION_MEMORY
- SESSION_MEMORY_DETAIL
- GLOBAL_SESSION_MEMORY_DETAIL
- SESSION_STAT_ACTIVITY
- GLOBAL_SESSION_STAT_ACTIVITY
- THREAD_WAIT_STATUS
- GLOBAL_THREAD_WAIT_STATUS
- LOCAL_THREADPOOL_STATUS
- GLOBAL_THREADPOOL_STATUS
- LOCAL_ACTIVE_SESSION
- Transaction
- Query
-
Cache/IO
- STATIO_USER_TABLES
- SUMMARY_STATIO_USER_TABLES
- GLOBAL_STATIO_USER_TABLES
- STATIO_USER_INDEXES
- SUMMARY_STATIO_USER_INDEXES
- GLOBAL_STATIO_USER_INDEXES
- STATIO_USER_SEQUENCES
- SUMMARY_STATIO_USER_SEQUENCES
- GLOBAL_STATIO_USER_SEQUENCES
- STATIO_SYS_TABLES
- SUMMARY_STATIO_SYS_TABLES
- GLOBAL_STATIO_SYS_TABLES
- STATIO_SYS_INDEXES
- SUMMARY_STATIO_SYS_INDEXES
- GLOBAL_STATIO_SYS_INDEXES
- STATIO_SYS_SEQUENCES
- SUMMARY_STATIO_SYS_SEQUENCES
- GLOBAL_STATIO_SYS_SEQUENCES
- STATIO_ALL_TABLES
- SUMMARY_STATIO_ALL_TABLES
- GLOBAL_STATIO_ALL_TABLES
- STATIO_ALL_INDEXES
- SUMMARY_STATIO_ALL_INDEXES
- GLOBAL_STATIO_ALL_INDEXES
- STATIO_ALL_SEQUENCES
- SUMMARY_STATIO_ALL_SEQUENCES
- GLOBAL_STATIO_ALL_SEQUENCES
- GLOBAL_STAT_DB_CU
- GLOBAL_STAT_SESSION_CU
-
Utility
- REPLICATION_STAT
- GLOBAL_REPLICATION_STAT
- REPLICATION_SLOTS
- GLOBAL_REPLICATION_SLOTS
- BGWRITER_STAT
- GLOBAL_BGWRITER_STAT
- GLOBAL_CKPT_STATUS
- GLOBAL_DOUBLE_WRITE_STATUS
- GLOBAL_PAGEWRITER_STATUS
- GLOBAL_RECORD_RESET_TIME
- GLOBAL_REDO_STATUS
- GLOBAL_RECOVERY_STATUS
- CLASS_VITAL_INFO
- USER_LOGIN
- SUMMARY_USER_LOGIN
- GLOBAL_SINGLE_FLUSH_DW_STATUS
- GLOBAL_CANDIDATE_STATUS
- Lock
- Wait Events
- Configuration
- Operator
- Workload Manager
- Global Plancache
- RTO & RPO
-
DBE_PLDEBUGGER Schema
- DBE_PLDEBUGGER.turn_on
- DBE_PLDEBUGGER.turn_off
- DBE_PLDEBUGGER.local_debug_server_info
- DBE_PLDEBUGGER.attach
- DBE_PLDEBUGGER.info_locals
- DBE_PLDEBUGGER.next
- DBE_PLDEBUGGER.continue
- DBE_PLDEBUGGER.abort
- DBE_PLDEBUGGER.print_var
- DBE_PLDEBUGGER.info_code
- DBE_PLDEBUGGER.step
- DBE_PLDEBUGGER.add_breakpoint
- DBE_PLDEBUGGER.delete_breakpoint
- DBE_PLDEBUGGER.info_breakpoints
- DBE_PLDEBUGGER.backtrace
- DBE_PLDEBUGGER.enable_breakpoint
- DBE_PLDEBUGGER.disable_breakpoint
- DBE_PLDEBUGGER.finish
- DBE_PLDEBUGGER.set_var
- DBE_PLDEVELOPER
- DBE_SQL_UTIL Schema
- 逻辑复制
- 物化视图
- 错误日志信息参考
- 配置运行参数
-
开发指南(分布式_V2.0-8.x)
- 工具参考
-
特性指南
- 特性指南(分布式_V2.0-8.x)
- 特性指南(集中式_V2.0-8.x)
- 特性指南(分布式_V2.0-3.x)
- 特性指南(集中式_V2.0-3.x)
- 最佳实践
- 性能白皮书
- API参考
- SDK参考
- 场景代码示例
-
常见问题
-
产品咨询
- 使用GaussDB要注意些什么
- 什么是GaussDB实例可用性
- GaussDB实例是否会受其他用户实例的影响
- 为何使用了GaussDB后网站登录较慢
- 多台弹性云服务器是否可以连接同一个GaussDB数据库
- 购买GaussDB实例后可以对磁盘进行加密吗
- GaussDB购买磁盘加密后,备份文件会加密吗
- 不同GaussDB实例的CPU和内存是否共享
- GaussDB实例内能运行多少个数据库
- GaussDB与PostgreSQL的关系
- 使用DAS登录GaussDB数据库是否有人数限制,密码多次输入错误有无锁死机制
- GaussDB分布式独立部署与分布式混合部署有什么区别
- GaussDB通用型、独享型和鲲鹏独享型性能规格之间的区别是什么
- GaussDB企业版和基础版可以互相切换吗
- GaussDB资源冻结/解冻/释放/删除/退订
- 资源及磁盘管理
- 数据库连接
- 数据库存储
- 数据库基本使用
- 备份与恢复
- 数据库监控
- 扩容及规格变更
-
数据库参数修改
- GaussDB如何修改时区
- GaussDB密码过期策略
- GaussDB是否支持使用SQL命令修改全局参数
- GaussDB是否支持开启SELECT审计功能
- GaussDB如何设置磁盘占用率只读检测阈值
- GaussDB如何设置日期和时间的显示格式
- GaussDB如何设置显示和解释时间类型数值时使用的时区
- GaussDB如何修改DN的最大连接数
- GaussDB如何开启INSERT、UPDATE、DELETE审计功能
- GaussDB如何设置最大允许创建walsender线程的个数
- GaussDB如何设置记录每个SQL的最大字节数
- GaussDB如何设置连接超时时间
- GaussDB如何设置账户被锁定后自动解锁的时间
- GaussDB如何设置账户最大登录失败次数
- 日志管理
- 网络安全
-
产品咨询
- 兼容性参考
- 视频帮助
- 文档下载
- 通用参考
链接复制成功!
使用gs_dump和gs_dumpall命令导出数据
操作场景
GaussDB提供的gs_dump和gs_dumpall工具,能够帮助用户导出需要的数据库对象或其相关信息。通过导入工具将导出的数据信息导入至需要的数据库,可以完成数据库信息的迁移。gs_dump支持导出单个数据库或其内的对象,而gs_dumpall支持导出数据库中所有数据库或各库的公共全局对象。详细的使用场景见表1。
在多租场景下,gs_dump支持导出单个PDB或其内的对象,而gs_dumpall不支持导出PDB及其内的对象。
适用场景 |
支持的导出粒度 |
支持的导出格式 |
配套的导入方法 |
---|---|---|---|
导出单个数据库 |
数据库级导出(参见导出数据库)。 |
|
|
模式级导出(参见导出模式)。
|
|||
表级导出(参见导出表)。
|
|||
导出所有数据库 |
数据库级导出(参见导出所有数据库)。 |
纯文本格式 |
数据文件导入请参见使用copy from命令导入数据。 |
各库公共全局对象导出(参见导出全局对象)。
|
gs_dump和gs_dumpall通过-U指定执行导出的用户账户。如果当前使用的账户不具备导出所要求的权限时,会无法导出数据。可使用该功能的场景请参见表1
注意事项
gs_dump和gs_dumpall通过对导出的数据文件加密,导入时对加密的数据文件进行解密,可以防止数据信息泄露,为数据库的安全提供保证。注意,使用gs_dump加密的纯文本格式文件,因gsql不支持解密导入存储过程和函数,因此如果导出的数据库中包含存储过程/函数,请使用另外三种模式导出数据库,并使用gs_restore恢复。
gs_dump和gs_dumpall工具在进行数据导出时,其他用户可以访问数据库(读或写)。
gs_dump和gs_dumpall工具支持导出完整一致的数据。例如,T1时刻启动gs_dump导出A数据库,或者启动gs_dumpall导出GaussDB数据库,那么导出数据结果将会是T1时刻A数据库或者该GaussDB数据库的数据状态,T1时刻之后对A数据库或GaussDB数据库的修改不会被导出。
gs_dump和gs_dumpall工具导出数据时,生成列不会被转储。
- 禁止修改-F c/d/t 格式导出的文件和内容,否则可能无法恢复成功。对于-F p 格式导出的文件,如有需要,可根据需要谨慎编辑导出文件。
- 如果数据库中包含的对象数量(数据表、视图、索引)在50万以上,为了提高性能且避免出现内存问题,建议联系技术支持
- 为了保证数据一致性和完整性,导出工具会对需要转储的表设置共享锁。如果表在别的事务中设置了共享锁,gs_dump和gs_dumpall会等待锁释放后锁定表。如果无法在指定时间内锁定某个表,转储会失败。用户可以通过指定--lock-wait-timeout选项,自定义等待锁超时时间。
- 由于gs_dumpall读取所有数据库中的表,因此必须以数据库管理员身份进行连接,才能导出完整文件。在使用gsql执行脚本文件导入时,同样需要管理员权限,以便添加用户和组,以及创建数据库。
迁移准备
- 准备弹性云服务器或可通过公网访问GaussDB。
- 在准备的弹性云服务器或可访问GaussDB数据库的设备上,安装gsql客户端,并连接到GaussDB数据库实例。详情请参见使用gsql连接数据库。
导出数据库
- 创建准备导出的库和表,并插入数据。
create database gs_example; \c gs_example password: create schema gs_sch_example; set search_path to gs_sch_example; create table gs_table_example ( col_1 integer, col_2 text, col_3 varchar(12), col_4 date, col_5 time ); insert into gs_table_example values(1,'iamtext','iamvarchar','2006-07-07','12:00:00'); insert into gs_table_example values(2,'sometext','somevarchar','2006-07-07','12:00:00'); insert into gs_table_example values(3,'sometext','somevarchar','2006-07-07','12:00:00'); insert into gs_table_example values(4,'sometext','somevarchar','2006-07-07','19:00:02'); insert into gs_table_example values(5,'sometext','somevarchar','2006-07-07', null); insert into gs_table_example values(6,'sometext','somevarchar','2006-07-07','19:00:02');
- 使用gs_dump导出gs_example数据库。
- 示例一:执行gs_dump,指定数据库IP,导出gs_example数据库全量信息,导出文件格式为sql文本格式。
gs_dump -U root -f /tmp/data/gs_example_dump.sql -p 8000 gs_example -F p -h 192.*.*.139; Password: gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:04:20]: The total objects number is 458. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:04:20]: [100.00%] 458 objects have been dumped. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:04:20]: dump database gs_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:04:20]: total time: 8779 ms
- 示例二:执行gs_dump,指定数据库IP,导出gs_example数据库全量信息,以tar归档格式到'/tmp/data/gs_example_dump.tar'文件中。
gs_dump -U root -f /tmp/data/gs_example_dump.tar -p 8000 gs_example -F t -h 192.*.*.139; Password: gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 14:58:49]: The total objects number is 458. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 14:58:49]: [100.00%] 458 objects have been dumped. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 14:58:49]: dump database gs_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 14:58:49]: total time: 8201 ms
- 示例三:执行gs_dump,指定数据库IP,仅导出gs_example数据库中的数据,不包含数据库对象定义,导出文件格式为自定义归档格式。
gs_dump -U root -f /tmp/data/gs_example_dump.dmp -p 8000 gs_example -a -F c -h 192.*.*.139; Password: gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:07:23]: dump database gs_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:07:23]: total time: 8369 ms
- 示例四:执行gs_dump,指定数据库IP,仅导出gs_example数据库所有对象的定义,导出文件格式为sql文本格式。
gs_dump -U root -f /tmp/data/gs_example_dump_s.sql -p 8000 gs_example -s -F p -h 192.*.*.139; Password: gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:09:37]: The total objects number is 457. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:09:37]: [100.00%] 457 objects have been dumped. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:09:37]: dump database gs_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:09:37]: total time: 8523 ms
- 示例五:执行gs_dump,指定数据库IP,仅导出gs_example数据库的所有对象的定义,导出文件格式为文本格式,并对导出文件进行加密。
gs_dump -U root -f /tmp/data/gs_example_dump_s_key.sql -p 8000 gs_example --with-encryption AES128 --with-key abcdefg_?1234567 -s -F p -h 192.*.*.139; Password: gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:10:38]: The total objects number is 457. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:10:38]: [100.00%] 457 objects have been dumped. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:10:38]: dump database gs_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:10:38]: total time: 9101 ms
表2 常用参数说明 参数
参数说明
举例
-U
连接数据库的用户名。
说明:
不指定连接数据库的用户名时,默认以安装时创建的初始系统管理员连接。
-U jack
-W
指定用户连接的密码。
- 如果主机的认证策略是trust,则不会对数据库管理员进行密码验证,即无需输入-W选项。
- 如果没有-W选项,并且不是数据库管理员,会提示用户输入密码。
-W ********
-f
将导出文件发送至指定目录文件夹。如果这里省略,则使用标准输出。如果输出格式为(-F c/-F d/-F t)时,必须指定-f参数。
-f /home/omm/backup/MPPDB_backup.tar
-p
指定服务器所侦听的TCP端口或本地Unix域套接字后缀,以确保连接。
-p 8000
dbname
需要导出的数据库名称。
testdb
-F
选择导出文件格式。-F参数值如下:
- p:纯文本格式
- c:自定义归档
- d:目录归档格式
- t:tar归档格式
-F t
- 示例一:执行gs_dump,指定数据库IP,导出gs_example数据库全量信息,导出文件格式为sql文本格式。
导出模式
- 创建准备导出的模式,并插入数据。
create database gs_example; \c gs_example password: create schema gs_sch_example; create schema gs_sch_1_example; create table gs_sch_example.gs_table_example ( col_1 integer, col_2 text, col_3 varchar(12), col_4 date, col_5 time ); create table gs_sch_1_example.gs_table_example ( col_1 integer, col_2 text, col_3 varchar(12), col_4 date, col_5 time ); insert into gs_sch_example.gs_table_example values(1,'iamtext','iamvarchar','2006-07-07','12:00:00'); insert into gs_sch_example.gs_table_example values(2,'sometext','somevarchar','2006-07-07','12:00:00'); insert into gs_sch_example.gs_table_example values(3,'sometext','somevarchar','2006-07-07','12:00:00'); insert into gs_sch_example.gs_table_example values(4,'sometext','somevarchar','2006-07-07','19:00:02'); insert into gs_sch_example.gs_table_example values(5,'sometext','somevarchar','2006-07-07', null); insert into gs_sch_example.gs_table_example values(6,'sometext','somevarchar','2006-07-07','19:00:02'); insert into gs_sch_1_example.gs_table_example values(7,'iamtext','iamvarchar','2006-07-07','12:00:00'); insert into gs_sch_1_example.gs_table_example values(8,'sometext','somevarchar','2006-07-07','12:00:00'); insert into gs_sch_1_example.gs_table_example values(9,'sometext','somevarchar','2006-07-07','12:00:00'); insert into gs_sch_1_example.gs_table_example values(10,'sometext','somevarchar','2006-07-07','19:00:02'); insert into gs_sch_1_example.gs_table_example values(11,'sometext','somevarchar','2006-07-07', null); insert into gs_sch_1_example.gs_table_example values(12,'sometext','somevarchar','2006-07-07','19:00:02');
- 使用gs_dump同时导出gs_example库中的模式。
- 示例一:执行gs_dump,指定数据库IP,同时导出gs_sch_example和gs_sch_1_example模式,导出文件格式为目录归档格式。
gs_dump -U root -f /tmp/data/gs_sch_dump -p 8000 gs_example -n gs_sch_example -n gs_sch_1_example -F d -h 192.*.*.139; Password: gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:37:11]: The total objects number is 460. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:37:11]: [100.00%] 460 objects have been dumped. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:37:11]: dump schema gs_sch_example gs_sch_1_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:37:11]: dump database gs_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:37:11]: total time: 9602 ms
- 示例二:执行gs_dump,指定数据库IP,导出gs_sch_example模式全量信息,导出文件格式为文本格式。
gs_dump -U root -f /tmp/data/gs_sch_dump.sql -p 8000 gs_example -n gs_sch_example -F p -h 192.*.*.139; Password: gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:39:00]: The total objects number is 457. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:39:00]: [100.00%] 457 objects have been dumped. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:39:00]: dump schema gs_sch_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:39:00]: dump database gs_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:39:00]: total time: 8582 ms
- 示例三:执行gs_dump,指定数据库IP,导出gs_example数据库时,排除gs_sch_example模式,导出文件格式为自定义归档格式。
gs_dump -U root -f /tmp/data/gs_sch_dump.dmp -p 8000 gs_example -N gs_sch_example -F c -h 192.*.*.139; Password: gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:41:14]: The total objects number is 458. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:41:14]: [100.00%] 458 objects have been dumped. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:41:14]: dump database gs_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:41:14]: total time: 8323 ms
表3 常用参数说明 参数
参数说明
举例
-U
连接数据库的用户名。
-U jack
-W
指定用户连接的密码。
- 如果主机的认证策略是trust,则不会对数据库管理员进行密码验证,即无需输入-W选项。
- 如果没有-W选项,并且不是数据库管理员,会提示用户输入密码。
-W ********
-f
将导出文件发送至指定目录文件夹。如果这里省略,则使用标准输出。
-f /home/omm/backup/MPPDB_schema_backup
-p
指定服务器所侦听的TCP端口或本地Unix域套接字后缀,以确保连接。
-p 8000
dbname
需要导出的数据库名称。
human_resource
-n
只导出与模式名称匹配的模式,此选项包括模式本身和所有它包含的对象。
- 单个模式:-n schemaname
- 多个模式:多次输入-n schemaname
- 单个模式:-n hr
- 多个模式:-n hr -n public
-F
选择导出文件格式。-F参数值如下:
- p:纯文本格式
- c:自定义归档
- d:目录归档格式
- t:tar归档格式
-F d
- 示例一:执行gs_dump,指定数据库IP,同时导出gs_sch_example和gs_sch_1_example模式,导出文件格式为目录归档格式。
导出表
- 创建准备导出的模式,并插入数据。
create database gs_example; \c gs_example password: create schema gs_sch_example; create table gs_sch_example.gs_table_example ( col_1 integer, col_2 text, col_3 varchar(12), col_4 date, col_5 time ); create table gs_sch_example.gs_table_example_2 ( col_1 integer, col_2 text, col_3 varchar(12), col_4 date, col_5 time ); insert into gs_sch_example.gs_table_example values(1,'iamtext','iamvarchar','2006-07-07','12:00:00'); insert into gs_sch_example.gs_table_example values(2,'sometext','somevarchar','2006-07-07','12:00:00'); insert into gs_sch_example.gs_table_example values(3,'sometext','somevarchar','2006-07-07','12:00:00'); insert into gs_sch_example.gs_table_example values(4,'sometext','somevarchar','2006-07-07','19:00:02'); insert into gs_sch_example.gs_table_example values(5,'sometext','somevarchar','2006-07-07', null); insert into gs_sch_example.gs_table_example values(6,'sometext','somevarchar','2006-07-07','19:00:02'); insert into gs_sch_example.gs_table_example_2 values(7,'iamtext','iamvarchar','2006-07-07','12:00:00'); insert into gs_sch_example.gs_table_example_2 values(8,'sometext','somevarchar','2006-07-07','12:00:00'); insert into gs_sch_example.gs_table_example_2 values(9,'sometext','somevarchar','2006-07-07','12:00:00'); insert into gs_sch_example.gs_table_example_2 values(10,'sometext','somevarchar','2006-07-07','19:00:02'); insert into gs_sch_example.gs_table_example_2 values(11,'sometext','somevarchar','2006-07-07', null); insert into gs_sch_example.gs_table_example_2 values(12,'sometext','somevarchar','2006-07-07','19:00:02');
- 使用gs_dump同时导出指定表gs_sch_example.gs_table_example和gs_sch_example.gs_table_example_2。
说明:
- 下方示例导出后,在导入恢复前,需要确保存在导出表所在的schema。
- 示例一:执行gs_dump,指定数据库IP,同时导出表gs_sch_example.gs_table_example和gs_sch_example.gs_table_example_2,导出文件格式为目录归档格式。
gs_dump -U root -f /tmp/data/gs_table_dump -p 8000 gs_example -t gs_sch_example.gs_table_example -t gs_sch_example.gs_table_example_2 -F d -h 192.*.*.139; Password: gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:49:06]: The total objects number is 458. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:49:06]: [100.00%] 458 objects have been dumped. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:49:06]: dump table gs_sch_example.gs_table_example gs_sch_example.gs_table_example_2 successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:49:06]: dump database gs_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:49:06]: total time: 7694 ms
- 示例二:执行gs_dump,指定数据库IP,不导出表gs_sch_example.gs_table_example_2,导出文件格式为自定义归档格式。
gs_dump -U root -f /tmp/data/gs_table_dump.dmp -p 8000 gs_example -T gs_sch_example.gs_table_example_2 -F c -h 192.*.*.139; Password: gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:52:07]: The total objects number is 461. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:52:07]: [100.00%] 461 objects have been dumped. gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:52:07]: dump database gs_example successfully gs_dump[user='root'][localhost][port='8000'][gs_example][2024-07-26 15:52:07]: total time: 8203 ms
表4 常用参数说明 参数
参数说明
举例
-U
连接数据库的用户名。
-U jack
-W
指定用户连接的密码。
- 如果主机的认证策略是trust,则不会对数据库管理员进行密码验证,即无需输入-W选项。
- 如果没有-W选项,并且不是数据库管理员,会提示用户输入密码。
-W ********
-f
将导出文件发送至指定目录文件夹。如果这里省略,则使用标准输出。
-f /home/omm/backup/MPPDB_table_backup
-p
指定服务器所侦听的TCP端口或本地Unix域套接字后缀,以确保连接。
-p 8000
dbname
需要导出的数据库名称。
human_resource
-t
指定导出的表(或视图、序列、外表),可以使用多个-t选项来选择多个表,也可以使用通配符指定多个表对象。当使用通配符指定多个表对象时,注意给pattern打引号,防止shell扩展通配符。
- 单个表:-t schema.table
- 多个表:多次输入-t schema.table
- 单个表:-t hr.staffs
- 多个表:-t hr.staffs -t hr.employments
-F
选择导出文件格式。-F参数值如下:
- p:纯文本格式
- c:自定义归档
- d:目录归档格式
- t:tar归档格式
-F d
-T
不转储的表(或视图、或序列、或外表)对象列表,可以使用多个-t选项来选择多个表,也可以使用通配符指定多个表对象。
当同时输入-t和-T时,会转储在-t列表中,而不在-T列表中的表对象。
-T table1
导出所有数据库
- 示例一:执行gs_dumpall,指定数据库IP,一次导出所有数据库信息,导出文件为sql文本格式。执行命令后,会有很长的打印信息,最终出现total time即代表执行成功。示例中将不体现中间的打印信息。
gs_dumpall -U root -f /tmp/data/dumpall.sql -p 8000 -h 192.*.*.139; Password: gs_dumpall[user='root'][localhost][port='8000'][2024-07-26 16:02:15]: dumpall operation successful gs_dumpall[user='root'][localhost][port='8000'][2024-07-26 16:02:15]: total time: 35133 ms
- 示例二:执行gs_dumpall,指定数据库IP,仅导出所有数据库定义,导出文件为sql文本格式。执行命令后,会有很长的打印信息,最终出现total time即代表执行成功。示例中将不体现中间的打印信息。
gs_dumpall -U root -f /tmp/data/dumpall_def.sql -p 8000 -s -h 192.*.*.139; Password: gs_dumpall[user='root'][localhost][port='8000'][2024-07-26 16:07:50]: dumpall operation successful gs_dumpall[user='root'][localhost][port='8000'][2024-07-26 16:07:50]: total time: 21239 ms
参数 |
参数说明 |
举例 |
---|---|---|
-U |
连接数据库的用户名,需要是数据库管理员用户。 |
-U omm |
-W |
指定用户连接的密码。
|
-W ******** |
-f |
将导出文件发送至指定目录文件夹。如果这里省略,则使用标准输出。 |
-f /home/omm/backup/MPPDB_backup.sql |
-p |
指定服务器所侦听的TCP端口或本地Unix域套接字后缀,以确保连接。 |
-p 8000 |
导出全局对象
- 示例一:执行gs_dumpall,指定数据库IP,导出所有数据库的公共全局表空间信息和用户信息,导出文件为sql文本格式。示例中将不体现中间的打印信息。
gs_dumpall -U root -f /tmp/data/dumpall_tablespace.sql -p 8000 -t -h 192.*.*.139; Password: gs_dumpall[user='root'][localhost][port='8000'][2024-07-26 16:10:42]: dumpall operation successful gs_dumpall[user='root'][localhost][port='8000'][2024-07-26 16:10:42]: total time: 1800 ms
- 示例二:执行gs_dumpall,指定数据库IP,导出所有数据库的公共全局用户信息,导出文件为文本格式。示例中将不体现中间的打印信息。
gs_dumpall -U root -f /tmp/data/dumpall_user.sql -p 8000 -r -h 192.*.*.139; Password: gs_dumpall[user='root'][localhost][port='8000'][2024-07-26 16:12:15]: dumpall operation successful gs_dumpall[user='root'][localhost][port='8000'][2024-07-26 16:12:15]: total time: 1269 ms
参数 |
参数说明 |
举例 |
---|---|---|
-U |
连接数据库的用户名,需要是数据库管理员用户。 |
-U omm |
-W |
指定用户连接的密码。
|
-W ******** |
-f |
将导出文件发送至指定目录文件夹。如果这里省略,则使用标准输出。 |
-f /home/omm/backup/MPPDB_tablespace.sql |
-p |
指定服务器所侦听的TCP端口或本地Unix域套接字后缀,以确保连接。 |
-p 8000 |
-t |
或者--tablespaces-only,只转储表空间,不转储数据库或角色。 |
-t |
相关链接
有关gs_dump和 gs_dumpall命令的更多信息,请参见: