- What's New
- Product Bulletin
- Service Overview
- Billing
- Getting Started
-
User Guide
- Function Overview
- Kernel Version Notes
- Permissions Management
-
Instance Management
- Instance Statuses
- Buying a DDM instance
- Splitting Read-only and Read-Write Services
- Changing Node Class
- Scaling Out a DDM Instance
- Scaling In a DDM Instance
- Restarting a DDM Instance or an Instance Node
- Deleting Pay-per-Use Instances
- Reloading Table Data
- Changing a Parameter Template
- Modifying Parameters of a DDM Instance
- Rolling Back the Version of a DDM Instance
- Upgrading the Version of a DDM Instance
- Upgrading the DDM Engine and OS
- Connection Management
- Schema Management
- Shard Configuration
- Data Nodes
-
Parameter Template Management
- Instance Parameters
- Creating a Parameter Template
- Modifying a Custom Parameter Template
- Comparing Two Parameter Templates
- Viewing Parameter Change History
- Replicating a Parameter Template
- Applying a Parameter Template
- Viewing Application Records of a Parameter Template
- Modifying the Description of a Parameter Template
- Deleting a Parameter Template
- Account Management
- Backups and Restorations
-
Data Migration
- Overview
- Migration Evaluation
- Scenario 1: Migrating Data from an On-Premises MySQL Instance to DDM
- Scenario 2: Migrating Data from a Third-Party Cloud MySQL Instance to DDM
- Scenario 3: Migrating Data from an ECS-hosted MySQL Instance on Huawei Cloud to DDM
- Scenario 4: Exporting Data from a DDM Instance
- Scenario 5: Migrating Data from Heterogeneous Databases to DDM
- Scenario 6: Migrating Data from Huawei Cloud RDS for MySQL to DDM
- Session Management
- Slow Queries
- Monitoring and Alarm Reporting
- Task Center
- Tags
- Auditing
-
SQL Syntax
- Introduction
- DDL
- DML
- Online DDL
- Functions
- Unsupported Objects and Use Constraints
- Supported SQL Statements
- Global Sequence
- Database Management Syntax
- Advanced SQL Functions
- Quotas
-
API Reference
- Before You Start
- API Overview
- Calling APIs
-
APIs (Recommended)
-
DDM Instances
- Buying a DDM instance
- Querying DDM Instances
- Querying Details of a DDM Instance
- Modifying the Name of a DDM Instance
- Changing the Security Group of a DDM Instance
- Deleting a DDM Instance
- Restarting a DDM Instance
- Reloading Table Data
- Scaling Out a DDM Instance
- Scaling in a DDM instance
- Modifying the Read Policy of the Associated DB Instance
- Synchronizing Data Node Information
- Querying Nodes of a DDM Instance
- Querying Details of a DDM Instance Node
- Querying Parameters of a Specified DDM Instance
- Modifying Parameters of a DDM Instance
- Querying DDM Engine Information
- Querying DDM Node Classes Available in an AZ
- Changing the Node Class of a DDM Instance
- Obtaining the Instance Group Information
- Creating an Instance Group
- Schemas
- Accounts
- Monitoring
- Session Management
- Application Examples
-
DDM Instances
- Permissions Policies and Supported Actions
- Appendix
- SDK Reference
-
Best Practices
- Overview
- Formulating Sharding Rules
- Determining the Number of Shards in a Schema
- Using Broadcast and Unsharded Tables
- Transaction Models
- SQL Standards
- Migrating an Entire RDS Database to DDM
- Migrating an Entire MyCat Database to DDM
- Accessing DDM Using a JDBC Connection Pool
- Logging In to a DDM Instance Using Navicat
- Migrating Data from RDS for MySQL to DDM Using DRS
- Sharding Database and Table Data of an RDS for MySQL Instance
- Performance White Paper
-
FAQs
- General Questions
-
DDM Usage
- How Does DDM Perform Sharding?
- What Do I Do If I Fail to Connect to a DDM Instance Using the JDBC Driver?
- Why It Takes So Long Time to Export Data from MySQL Using mysqldump?
- What Do I Do If a Duplicate Primary Key Error Occurs When Data Is Imported into DDM?
- What Should I Do If an Error Message Is Returned When I Specify an Auto-Increment Primary Key During Migration?
- What Do I Do If an Error Is Reported When Parameter Configuration Does Not Time Out?
- Which Should I Delete First, a Schema or its Associated RDS Instances?
- Can I Manually Delete Databases and Accounts Remained in Data Nodes After a Schema Is Deleted?
- SQL Syntax
-
RDS-related Questions
- Is the Name of a Database Table Case-Sensitive?
- What Risky Operations on RDS for MySQL Will Affect DDM?
- How Do I Handle Data with Duplicate Primary Keys in a Table?
- How Can I Query RDS for MySQL Information by Running Command show full innodb status?
- What Should I Pay Attention to When Selecting RDS for MySQL Instance Specifications?
- Connection Management
- Resource Freezing, Release, Deletion, and Unsubscription
- Videos
-
More Documents
-
User Guide (ME-Abu Dhabi Region)
- Service Overview
- Getting Started
- Function Overview
- Instance Management
-
Parameter Template Management
- Creating a Parameter Template
- Editing a Parameter Template
- Comparing Two Parameter Templates
- Viewing Parameter Change History
- Replicating a Parameter Template
- Applying a Parameter Template
- Viewing Application Records of a Parameter Template
- Modifying the Description of a Parameter Template
- Deleting a Parameter Template
- Task Center
- Schema Management
- Account Management
- Backup Management
- Monitoring Management
- Auditing
-
SQL Syntax
- Introduction
- DDL
- DML
- Functions
- Unsupported Items
- Supported SQL Statements
- Global Sequence
- Database Management Syntax
- Advanced SQL Functions
-
FAQs
- General Questions
-
DDM Usage
- How Can I Rectify a Fault in Accessing DDM by Using the JDBC Driver?
- What Version and Parameters Should I Select?
- Why It Takes So Long Time to Export Data from MySQL Using mysqldump?
- How Should I Handle the Duplicate Primary Key Error Occurring After Data Is Imported into DDM?
- What Should I Do If an Error Message Is Returned After I Specify an Auto-Increment Primary Key?
- How Do I Handle the Error Reported When Parameter Configuration Does Not Time Out?
- Which Should I Delete First, Schema or Associated RDS DB Instances?
- Should I Manually Delete Databases and Accounts Remained in the Associated RDS DB Instances After a Schema Is Deleted?
- SQL Syntax
- RDS-related Questions
- Connection Management
-
User Guide (Kuala Lumpur Region)
- Service Overview
- Getting Started
- Function Overview
- Instance Management
-
Parameter Template Management
- Creating a Parameter Template
- Editing a Parameter Template
- Comparing Two Parameter Templates
- Viewing Parameter Change History
- Replicating a Parameter Template
- Applying a Parameter Template
- Viewing Application Records of a Parameter Template
- Modifying the Description of a Parameter Template
- Deleting a Parameter Template
- Task Center
- Schema Management
- Account Management
- Backup Management
- Monitoring Management
- Auditing
-
SQL Syntax
- Introduction
- DDL
- DML
- Functions
- Unsupported Items
- Supported SQL Statements
- Global Sequence
- Database Management Syntax
- Advanced SQL Functions
-
FAQs
- General Questions
-
DDM Usage
- How Can I Rectify a Fault in Accessing DDM by Using the JDBC Driver?
- What Version and Parameters Should I Select?
- Why It Takes So Long Time to Export Data from MySQL Using mysqldump?
- How Should I Handle the Duplicate Primary Key Error Occurring After Data Is Imported into DDM?
- What Should I Do If an Error Message Is Returned After I Specify an Auto-Increment Primary Key?
- How Do I Handle the Error Reported When Parameter Configuration Does Not Time Out?
- Which Should I Delete First, Schema or Associated RDS DB Instances?
- Should I Manually Delete Databases and Accounts Remained in the Associated RDS DB Instances After a Schema Is Deleted?
- SQL Syntax
- RDS-related Questions
- Connection Management
-
API Reference (Kuala Lumpur Region)
- Before You Start
- API Overview
- Calling APIs
-
DDM Instance Management
- Querying DDM Engine
- Querying the Quota of Classes Available in Each AZ
- Creating a DDM Instance
- Querying DDM Instances
- Viewing Details of a DDM Instance
- Modifying the Name of a DDM Instance
- Modifying the Security Group of a DDM Instance
- Deleting a DDM Instance
- Restarting a DDM Instance
- Reloading Table Data
- Scaling Out a DDM instance
- Scaling In a DDM instance
- Modifying the Read Policy of the Associated DB Instance
- Synchronizing DB Instance Data
- Querying Nodes of a DDM Instance
- Querying Details of a DDM Instance Node
- Querying Parameters of a Specified DDM Instance
- Modifying Parameters of a DDM Instance
- Schema Management
- Account Management
- Monitoring Management
- Permissions Policies and Supported Actions
- Appendix
- Change History
-
User Guide (ME-Abu Dhabi Region)
- General Reference
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API Overview
DDM provides REST APIs. With DDM APIs, you can use all DDM functions, including creating DDM instances and schemas.
Type |
API |
Description |
---|---|---|
APIs for managing DDM instances |
Buying a DDM instance |
This API is used to buy a DDM instance. DDM instances created using this API are billed in pay-per-use mode. DDM runs in VPCs. Before you create a DDM instance, ensure that a VPC is available and a subnet and security group have been configured. |
Querying DDM instances |
This API is used to query DDM instances. |
|
Querying details of a DDM instance |
This API is used to query details about a DDM instance. |
|
Modifying the name of a DDM instance |
This API is used to modify the name of an existing DDM instance. |
|
Modifying the security group of a DDM instance |
This API is used to modify the security group of a DDM instance. |
|
Deleting a DDM instance |
This API is used to delete a DDM instance to release all its resources. |
|
Restarting a DDM instance |
This API is used to restart a DDM instance. |
|
Reloading table data |
This API is used to reload table data of the destination DDM instance for cross-region DR. |
|
Scaling out a DDM instance |
This API is used to add nodes to a specified DDM instance. |
|
Scaling in a DDM instance |
This API is used to remove nodes from a specified DDM instance. |
|
Modifying the read policy of the associated DB instance |
This API is used to modify the read policy of the DB instance associated with a DDM instance. |
|
Synchronizing data node information |
This API is used to synchronize configuration information of all data nodes that are associated with the current DDM instance. |
|
Querying nodes of a DDM instance |
This API is used to query nodes of a DDM instance. |
|
Querying details of a DDM instance node |
This API is used to query details of a DDM instance node. |
|
Querying parameters of a specified DDM instance |
This API is used to query parameters of a specified DDM instance. |
|
Modifying parameters of a DDM instance |
This API is used to modify parameters of a DDM instance. |
|
Querying DDM engine information |
This API is used to query information about DDM engine. |
|
Querying DDM node classes available in an AZ |
This API is used to query DDM node classes available in an AZ. |
|
Changing the node class of a DDM Instance |
This API is used to change the node class of a DDM instance. |
|
Obtaining the instance group information |
This API is used to obtain the group details of a DDM instance. |
|
APIs for managing schemas |
Creating a schema |
This API is used to create a schema. Before creating a schema, ensure that there is an RDS instance available and that the instance is running properly and not associated with any DDM instance. |
Querying schemas of a DDM instance |
This API is used to query schemas of a DDM instance. |
|
Querying details of a schema |
This API is used to query details about a schema. |
|
Deleting a schema |
This API is used to delete a schema to release all its resources. |
|
Querying DB instances available for creating a schema |
This API is used to query DB instances that can be used for creating a schema. |
|
APIs for managing DDM accounts |
Creating a DDM account |
This API is used to create a DDM account. DDM accounts are used to connect to and manage schemas. One DDM account can be associated with multiple schemas. |
Querying DDM accounts |
This API is used to query DDM accounts. |
|
Modifying a DDM account |
This API is used to modify the permissions and associated schemas of a DDM account. |
|
Deleting a DDM account |
This API is used to delete a DDM account. This operation will also disassociate the account from schemas if any. |
|
Resetting the password of a DDM account |
This API is used to reset the password of a DDM account. |
|
Validating password strength |
This API is used to validate whether an instance password is a weak password. |
|
Monitoring |
Monitoring slow query logs |
This API is used to query the SQL statements that take a long time to execute on the DDM instance within a specified time range. |
Monitoring the read/write ratio (unavailable Soon) |
This API is used to query reads and writes of a DDM instance in a specified time range. |
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