数据操作语句(DML)
本节主要介绍MySQL DML的迁移语法。迁移语法决定了关键字/功能的迁移方式。
本节包括以下内容:
INSERT
INSERT插入形式包括:HIGH_PRIORITY、LOW_PRIORITY、PARTITION、DELAYED、IGNORE、多值插入以及ON DUPLICATE KEY UPDATE。GaussDB(DWS)不支持以上类型插入,DSC工具将会对其转换。
- HIGH_PRIORITY
MySQL中如果指定HIGH_PRIORITY,则会覆盖LOW_PRIORITY选项的效果。
输入示例
# HIGH_PRIORITY 高优先级 INSERT HIGH_PRIORITY INTO exmp_tb2 VALUES(100, 12.3, 'cheap', '2018-11-11'); INSERT HIGH_PRIORITY INTO exmp_tb2 VALUES(DEFAULT, 128.23, 'nice', '2018-10-11'); INSERT HIGH_PRIORITY INTO exmp_tb2 VALUES(DEFAULT, DEFAULT, 'nice', '2018-12-14'); INSERT HIGH_PRIORITY INTO exmp_tb2 VALUES(DEFAULT, DEFAULT, 'nice', DEFAULT); INSERT HIGH_PRIORITY INTO exmp_tb2 (tb2_id, tb2_price) VALUES(DEFAULT, DEFAULT); INSERT HIGH_PRIORITY INTO exmp_tb2 (tb2_id, tb2_price, tb2_note) VALUES(DEFAULT, DEFAULT, DEFAULT); INSERT HIGH_PRIORITY INTO exmp_tb2 (tb2_id, tb2_price , tb2_note) VALUES(DEFAULT, DEFAULT, DEFAULT); INSERT HIGH_PRIORITY INTO exmp_tb2 (tb2_id, tb2_price, tb2_note, tb2_date) VALUES(DEFAULT, DEFAULT, DEFAULT, DEFAULT);
输出示例
-- HIGH_PRIORITY 高优先级 INSERT INTO "public"."exmp_tb2" VALUES (100,12.3,'cheap','2018-11-11'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,128.23,'nice','2018-10-11'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,DEFAULT,'nice','2018-12-14'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,DEFAULT,'nice',DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price") VALUES (DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note") VALUES (DEFAULT,DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note") VALUES (DEFAULT,DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note","tb2_date") VALUES (DEFAULT,DEFAULT,DEFAULT,DEFAULT);
- LOW_PRIORITY
MySQL INSERT插入语句使用LOW_PRIORITY修饰符时,则执行该INSERT延迟。
输入示例
# LOW_PRIORITY 低优先级 INSERT LOW_PRIORITY INTO exmp_tb2 VALUES( DEFAULT, '128.23', 'nice', '2018-10-11'); INSERT LOW_PRIORITY INTO exmp_tb2 VALUES(DEFAULT, DEFAULT, 'nice', '2018-12-14' ); INSERT LOW_PRIORITY INTO exmp_tb2 VALUES(DEFAULT, DEFAULT, 'nice', DEFAULT); INSERT LOW_PRIORITY INTO exmp_tb2 (tb2_id, tb2_price) VALUES(DEFAULT, DEFAULT); INSERT LOW_PRIORITY INTO exmp_tb2 (tb2_id, tb2_price, tb2_note) VALUES(DEFAULT, DEFAULT, DEFAULT);
输出示例
-- LOW_PRIORITY 低优先级 INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,'128.23','nice','2018-10-11'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,DEFAULT,'nice','2018-12-14'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,DEFAULT,'nice',DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price") VALUES (DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note") VALUES (DEFAULT,DEFAULT,DEFAULT);
- PRATITION
当插入到分区表中时,可以控制哪些分区和子分区接受新行。
输入示例
INSERT INTO employees PARTITION(p3) VALUES (19, 'Frank1', 'Williams', 1, 2); INSERT INTO employees PARTITION(p0) VALUES (4, 'Frank1', 'Williams', 1, 2); INSERT INTO employees PARTITION(p1) VALUES (9, 'Frank1', 'Williams', 1, 2); INSERT INTO employees PARTITION(p2) VALUES (10, 'Frank1', 'Williams', 1, 2); INSERT INTO employees PARTITION(p2) VALUES (11, 'Frank1', 'Williams', 1, 2);
输出示例
INSERT INTO "public"."employees" VALUES (19,'Frank1','Williams',1,2); INSERT INTO "public"."employees" VALUES (4,'Frank1','Williams',1,2); INSERT INTO "public"."employees" VALUES (9,'Frank1','Williams',1,2); INSERT INTO "public"."employees" VALUES (10,'Frank1','Williams',1,2); INSERT INTO "public"."employees" VALUES (11,'Frank1','Williams',1,2);
- DELAYED
在MySQL 5.7中,DELAYED关键字被接受,但被服务器忽略。
输入示例
# DELAYED 延迟 INSERT DELAYED INTO exmp_tb2 VALUES(99, 15.68, 'good', '2018-11-12'); INSERT DELAYED INTO exmp_tb2 VALUES(80, 12.3, 'cheap', '2018-11-11'); INSERT DELAYED INTO exmp_tb2 VALUES(DEFAULT, 128.23, 'nice', '2018-10-11'); INSERT DELAYED INTO exmp_tb2 VALUES(DEFAULT, DEFAULT, 'nice', '2018-12-14'); INSERT DELAYED INTO exmp_tb2 VALUES(DEFAULT, DEFAULT, 'nice', DEFAULT); INSERT DELAYED INTO exmp_tb2 (tb2_id, tb2_price) VALUES(DEFAULT, DEFAULT); INSERT DELAYED INTO exmp_tb2 (tb2_id, tb2_price, tb2_note) VALUES(DEFAULT, DEFAULT, DEFAULT); INSERT DELAYED INTO exmp_tb2 (tb2_id, tb2_price, tb2_note, tb2_date) VALUES(DEFAULT, DEFAULT, DEFAULT, DEFAULT);
输出示例
-- DELAYED 延迟 INSERT INTO "public"."exmp_tb2" VALUES (99,15.68,'good','2018-11-12'); INSERT INTO "public"."exmp_tb2" VALUES (80,12.3,'cheap','2018-11-11'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,128.23,'nice','2018-10-11'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,DEFAULT,'nice','2018-12-14'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,DEFAULT,'nice',DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price") VALUES (DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note") VALUES (DEFAULT,DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note","tb2_date") VALUES (DEFAULT,DEFAULT,DEFAULT,DEFAULT);
- IGNORE
MySQL INSERT语句如果使用IGNORE修饰符,则执行INSERT语句时发生的错误将被忽略。
输入示例
# 如果表中已经存在相同的记录,则忽略当前新数据 INSERT IGNORE INTO exmp_tb2 VALUES(189, '189.23','nice','2017-11-12'); INSERT IGNORE INTO exmp_tb2 VALUES(130,'189.23','nice','2017-11-12'); INSERT IGNORE INTO exmp_tb2 VALUES(120,15.68,'good','2018-11-12'); INSERT IGNORE INTO exmp_tb2 VALUES(DEFAULT,128.23,'nice','2018-10-11'); INSERT IGNORE INTO exmp_tb2 VALUES(DEFAULT,DEFAULT,'nice','2018-12-14'); INSERT IGNORE INTO exmp_tb2 VALUES(DEFAULT,DEFAULT,'nice',DEFAULT);test INSERT IGNORE INTO exmp_tb2 (tb2_id,tb2_price) VALUES(DEFAULT,DEFAULT); INSERT IGNORE INTO exmp_tb2 (tb2_id,tb2_price,tb2_note) VALUES(DEFAULT,DEFAULT,DEFAULT); INSERT IGNORE INTO exmp_tb2 (tb2_id,tb2_price,tb2_note,tb2_date) VALUES(DEFAULT,DEFAULT,DEFAULT,DEFAULT);
输出示例
-- 如果表中已经存在相同的记录,则忽略当前新数据 INSERT INTO "public"."exmp_tb2" VALUES (101,'189.23','nice','2017-11-12'); INSERT INTO "public"."exmp_tb2" VALUES (130,'189.23','nice','2017-11-12'); INSERT INTO "public"."exmp_tb2" VALUES (120,15.68,'good','2018-11-12'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,128.23,'nice','2018-10-11'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,DEFAULT,'nice','2018-12-14'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,DEFAULT,'nice',DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price") VALUES (DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note") VALUES (DEFAULT,DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note","tb2_date") VALUES (DEFAULT,DEFAULT,DEFAULT,DEFAULT);
- VALUES(单语句多行值插入)
INSERT使用 VALUES语法的语句可以插入多行,以逗号分隔。
输入示例
INSERT INTO exmp_tb1 (tb1_name,tb1_sex,tb1_address,tb1_number) VALUES('David','male','NewYork','01015827875'),('Rachel','female','NewYork','01015827749'),('Monica','female','NewYork','010158996743');
输出示例
INSERT INTO "public"."exmp_tb1" ("tb1_name","tb1_sex","tb1_address","tb1_number") VALUES ('David','male','NewYork','01015827875'); INSERT INTO "public"."exmp_tb1" ("tb1_name","tb1_sex","tb1_address","tb1_number") VALUES ('Rachel','female','NewYork','01015827749'); INSERT INTO "public"."exmp_tb1" ("tb1_name","tb1_sex","tb1_address","tb1_number") VALUES ('Monica','female','NewYork','010158996743');
- ON DUPLICATE KEY UPDATE
INSERT使用 ON DUPLICATE KEY UPDATE子句可以使现有行更新。
输入示例
#ON DUPLICATE KEY UPDATE 若该数据的主键值/ UNIQUE KEY 已经在表中存在,则执行更新操作, 即UPDATE;否则执行插入操作 INSERT INTO exmp_tb2(tb2_id,tb2_price) VALUES(3,12.3) ON DUPLICATE KEY UPDATE tb2_price=12.3; INSERT INTO exmp_tb2(tb2_id,tb2_price) VALUES(4,12.3) ON DUPLICATE KEY UPDATE tb2_price=12.3; INSERT INTO exmp_tb2(tb2_id,tb2_price,tb2_note) VALUES(10,DEFAULT,DEFAULT) ON DUPLICATE KEY UPDATE tb2_price=66.6; INSERT INTO exmp_tb2(tb2_id,tb2_price,tb2_note,tb2_date) VALUES(11,DEFAULT,DEFAULT,DEFAULT) ON DUPLICATE KEY UPDATE tb2_price=66.6;
输出示例
--ON DUPLICATE KEY UPDATE 若该数据的主键值/ UNIQUE KEY 已经在表中存在,则执行更新操作, 即UPDATE;否则执行插入操作 INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price") VALUES (3,12.3); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price") VALUES (4,12.3); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note") VALUES (10,DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note","tb2_date") VALUES (11,DEFAULT,DEFAULT,DEFAULT);
- SET
MySQL INSERT...SET语句的形式插入基于明确指定的值的行。
输入示例
# INSERT INTO SET 可以针对性的执行插入操作,但是一次只能插入一行数据,不能批量添加数据 INSERT INTO exmp_tb2 SET tb2_price=56.1,tb2_note='unbelievable',tb2_date='2018-11-13'; INSERT INTO exmp_tb2 SET tb2_price=99.9,tb2_note='perfect',tb2_date='2018-10-13'; INSERT INTO exmp_tb2 SET tb2_id=9,tb2_price=99.9,tb2_note='perfect',tb2_date='2018-10-13';
输出示例
-- INSERT INTO SET 可以针对性的执行插入操作,但是一次只能插入一行数据,不能批量添加数据 INSERT INTO "public"."exmp_tb2" ("tb2_price","tb2_note","tb2_date") VALUES (56.1,'unbelievable','2018-11-13'); INSERT INTO "public"."exmp_tb2" ("tb2_price","tb2_note","tb2_date") VALUES (99.9,'perfect','2018-10-13'); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note","tb2_date") VALUES (9,99.9,'perfect','2018-10-13');
UPDATE
MySQL的UPDATE操作形式包括:LOW_PRIORITY、ORDER BY、LIMIT 、IGNORE。GaussDB(DWS)不支持以上类型更新,DSC工具将会对其转换。
- LOW_PRIORITY
MySQL UPDATE语句如果使用LOW_PRIORITY修饰符,则执行UPDATE延迟。
输入示例
#测试 LOW_PRIORITY 语法点 UPDATE LOW_PRIORITY employees SET department_id=2;
输出示例
--测试 LOW_PRIORITY 语法点 UPDATE "public"."employees" SET "department_id" = 2;
- ORDER_BY
如果一个MySQL UPDATE语句包含一个 ORDER BY子句,则这些行将按照该子句指定的顺序更新。
输入示例
# 测试 ORDER BY 语法点 UPDATE employees SET department_id=department_id+1 ORDER BY id;
输出示例
-- 测试 ORDER BY 语法点 UPDATE "public"."employees" SET "department_id" = department_id+1;
- LIMIT
UPDATE LIMIT语法可以用来限制的范围。一个子句是一个行匹配的限制。只要发现满足该子句的行, 语句就会停下来 ,不管它们是否真的发生了变化。
输入示例
#单独测试 LIMIT 语法点 UPDATE employees SET department_id=department_id+1 LIMIT 3 ; UPDATE employees SET department_id=department_id+1 LIMIT 3 , 10 ; #测试 LIMIT + OFFSET 语法点 UPDATE employees SET department_id=department_id+1 LIMIT 3 OFFSET 2; #测试 LIMIT + ORDER BY 语法点搭配使用 UPDATE employees SET department_id=department_id+1 ORDER BY fname LIMIT 3 ; #测试 LIMIT + WHERE + ORDER BY 语法点搭配使用 UPDATE employees SET department_id=department_id+1 WHERE id<5 ORDER BY fname LIMIT 3 ; #测试 LIMIT + WHERE + ORDER BY + OFFSET 语法点搭配使用 UPDATE employees SET department_id=department_id+1 WHERE id<5 ORDER BY fname LIMIT 3 OFFSET 2 ;
输出示例
--单独测试 LIMIT 语法点 UPDATE "public"."employees" SET "department_id" = department_id+1; UPDATE "public"."employees" SET "department_id" = department_id+1; --测试 LIMIT + OFFSET 语法点 UPDATE "public"."employees" SET "department_id" = department_id+1; --测试 LIMIT + ORDER BY 语法点搭配使用 UPDATE "public"."employees" SET "department_id" = department_id+1; --测试 LIMIT + WHERE + ORDER BY 语法点搭配使用 UPDATE "public"."employees" SET "department_id" = department_id+1 WHERE id<5; --测试 LIMIT + WHERE + ORDER BY + OFFSET 语法点搭配使用 UPDATE "public"."employees" SET "department_id" = department_id+1 WHERE id<5;
- IGNORE
MySQL UPDATE语句如果使用IGNORE修饰符,即使更新期间发生错误,update语句也不会中止。
输入示例
#测试 IGNORE 语法点 UPDATE IGNORE employees SET department_id=3;
输出示例
--测试 IGNORE 语法点 UPDATE "public"."employees" SET "department_id" = 3;
REPLACE
MySQL的REPLACE操作形式包括:LOW_PRIORITY、PARTITION 、DELAYED 、VALUES、SET;(下述迁移示例为临时迁移方案)
REPLACE的工作方式与INSERT完全相同,不同之处在于,如果表中的旧行与主键或唯一索引的新行具有相同的值,则在插入新行之前删除该旧行。
- LOW_PRIORITY
MySQL REPLACE支持使用LOW_PRIORITY ,DSC工具将对其进行转换。
输入
# LOW_PRIORITY 低优先级 Replace LOW_PRIORITY INTO exmp_tb2 VALUES(1, '128.23', 'nice', '2018-10-11 19:00:00'); Replace LOW_PRIORITY INTO exmp_tb2 VALUES(2, DEFAULT, 'nice', '2018-12-14 19:00:00' ); Replace LOW_PRIORITY INTO exmp_tb2 VALUES(3, DEFAULT, 'nice', DEFAULT); Replace LOW_PRIORITY INTO exmp_tb2 (tb2_id, tb2_price) VALUES(5, DEFAULT); Replace LOW_PRIORITY INTO exmp_tb2 (tb2_id, tb2_price, tb2_note) VALUES(4, DEFAULT, DEFAULT);
输出
-- LOW_PRIORITY 低优先级 INSERT INTO "public"."exmp_tb2" VALUES (1,'128.23','nice','2018-10-11 19:00:00'); INSERT INTO "public"."exmp_tb2" VALUES (2,DEFAULT,'nice','2018-12-14 19:00:00'); INSERT INTO "public"."exmp_tb2" VALUES (3,DEFAULT,'nice',DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price") VALUES (5,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note") VALUES (4,DEFAULT,DEFAULT);
- PARTITION
MySQL REPLACE支持使用PARTITION关键字和分区,子分区或两者的逗号分隔名称列表显式分区选择。
输入
replace INTO employees PARTITION(p3) VALUES (19, 'Frank1', 'Williams', 1, 2); replace INTO employees PARTITION(p0) VALUES (4, 'Frank1', 'Williams', 1, 2); replace INTO employees PARTITION(p1) VALUES (9, 'Frank1', 'Williams', 1, 2); replace INTO employees PARTITION(p2) VALUES (10, 'Frank1', 'Williams', 1, 2); replace INTO employees PARTITION(p2) VALUES (11, 'Frank1', 'Williams', 1, 2);
输出
INSERT INTO "public"."employees" VALUES (19,'Frank1','Williams',1,2); INSERT INTO "public"."employees" VALUES (4,'Frank1','Williams',1,2); INSERT INTO "public"."employees" VALUES (9,'Frank1','Williams',1,2); INSERT INTO "public"."employees" VALUES (10,'Frank1','Williams',1,2); INSERT INTO "public"."employees" VALUES (11,'Frank1','Williams',1,2);
- DELAYED
DELAYED插入和替换在MySQL 5.6中被弃用。在MySQL 5.7中,DELAYED 不支持。服务器识别但忽略 DELAYED关键字,将替换处理为非延迟替换,并生成 ER_WARN_LEGACY_SYNTAX_CONVERTED警告。(“ REPLACE DELAYED不再被支持,语句被转换为REPLACE。 ”)DELAYED 关键字将在未来版本中被删除。
输入
#DELAYED INSERT DELAYED works only with MyISAM, MEMORY, ARCHIVE, and BLACKHOLE tables. #If you execute INSERT DELAYED with another storage engine, #you will get an error like this: ERROR 1616 (HY000): DELAYED option not supported Replace DELAYED INTO exmp_tb2 VALUES(10, 128.23, 'nice', '2018-10-11 19:00:00'); Replace DELAYED INTO exmp_tb2 VALUES(6, DEFAULT, 'nice', '2018-12-14 19:00:00'); Replace DELAYED INTO exmp_tb2 VALUES(7, 20, 'nice', DEFAULT); Replace DELAYED INTO exmp_tb2 (tb2_id, tb2_price) VALUES(11, DEFAULT); Replace DELAYED INTO exmp_tb2 (tb2_id, tb2_price, tb2_note) VALUES(12, DEFAULT, DEFAULT); Replace DELAYED INTO exmp_tb2 (tb2_id, tb2_price, tb2_note, tb2_date) VALUES(13, DEFAULT, DEFAULT, DEFAULT);
输出
--DELAYED INSERT DELAYED works only with MyISAM, MEMORY, ARCHIVE, and BLACKHOLE tables. --If you execute INSERT DELAYED with another storage engine, --you will get an error like this: ERROR 1616 (HY000): DELAYED option not supported. INSERT INTO "public"."exmp_tb2" VALUES (10,128.23,'nice','2018-10-11 19:00:00'); INSERT INTO "public"."exmp_tb2" VALUES (6,DEFAULT,'nice','2018-12-14 19:00:00'); INSERT INTO "public"."exmp_tb2" VALUES (7,20,'nice',DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price") VALUES (11,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note") VALUES (12,DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note","tb2_date") VALUES (13,DEFAULT,DEFAULT,DEFAULT);
- VALUES
MySQL REPLACE支持一条语句插入或删除多值,以逗号分隔。
输入
#有数据的话则替换replace,没有的话则插入新的数据同insert Replace INTO exmp_tb1 (tb1_id,tb1_name,tb1_sex,tb1_address,tb1_number) VALUES(17,'David','male','NewYork11','01015827875'),(18,'Rachel','female','NewYork22','01015827749'),(20,'Monica','female','NewYork','010158996743'); Replace INTO exmp_tb1 (tb1_id,tb1_name,tb1_sex,tb1_address,tb1_number) VALUES(17,'David1','male','NewYork11','01015827875'),(21,'Rachel','female','NewYork22','01015827749'),(22,'Monica','female','NewYork','010158996743'); Replace INTO exmp_tb1 (tb1_id,tb1_name,tb1_sex,tb1_address,tb1_number,tb1_date) VALUES(17,'David2',DEFAULT,'NewYork11','01015827875',DEFAULT),(18,'Rachel','female',DEFAULT,'01015827749','2018-12-14 10:44:20'),(DEFAULT,'Monica','female',DEFAULT,DEFAULT,'2018-12-14 10:44:20'); Replace INTO exmp_tb1 VALUES(DEFAULT,'David',DEFAULT,'NewYork11','01015827875',DEFAULT),(18,'Rachel','female',DEFAULT,'01015827749','2018-12-14 10:44:20'),(DEFAULT,'Monica','female',DEFAULT,DEFAULT,'2018-12-14 10:44:20');
输出
--有数据的话则替换replace,没有的话则插入新的数据同insert INSERT INTO "public"."exmp_tb1" ("tb1_id","tb1_name","tb1_sex","tb1_address","tb1_number") VALUES (17,'David','male','NewYork11','01015827875'); INSERT INTO "public"."exmp_tb1" ("tb1_id","tb1_name","tb1_sex","tb1_address","tb1_number") VALUES (18,'Rachel','female','NewYork22','01015827749'); INSERT INTO "public"."exmp_tb1" ("tb1_id","tb1_name","tb1_sex","tb1_address","tb1_number") VALUES (20,'Monica','female','NewYork','010158996743'); INSERT INTO "public"."exmp_tb1" ("tb1_id","tb1_name","tb1_sex","tb1_address","tb1_number") VALUES (17,'David1','male','NewYork11','01015827875'); INSERT INTO "public"."exmp_tb1" ("tb1_id","tb1_name","tb1_sex","tb1_address","tb1_number") VALUES (21,'Rachel','female','NewYork22','01015827749'); INSERT INTO "public"."exmp_tb1" ("tb1_id","tb1_name","tb1_sex","tb1_address","tb1_number") VALUES (22,'Monica','female','NewYork','010158996743'); INSERT INTO "public"."exmp_tb1" ("tb1_id","tb1_name","tb1_sex","tb1_address","tb1_number","tb1_date") VALUES (17,'David2',DEFAULT,'NewYork11','01015827875',DEFAULT); INSERT INTO "public"."exmp_tb1" ("tb1_id","tb1_name","tb1_sex","tb1_address","tb1_number","tb1_date") VALUES (18,'Rachel','female',DEFAULT,'01015827749','2018-12-14 10:44:20'); INSERT INTO "public"."exmp_tb1" ("tb1_id","tb1_name","tb1_sex","tb1_address","tb1_number","tb1_date") VALUES (DEFAULT,'Monica','female',DEFAULT,DEFAULT,'2018-12-14 10:44:20'); INSERT INTO "public"."exmp_tb1" VALUES (DEFAULT,'David',DEFAULT,'NewYork11','01015827875',DEFAULT); INSERT INTO "public"."exmp_tb1" VALUES (18,'Rachel','female',DEFAULT,'01015827749','2018-12-14 10:44:20'); INSERT INTO "public"."exmp_tb1" VALUES (DEFAULT,'Monica','female',DEFAULT,DEFAULT,'2018-12-14 10:44:20');
- SET
MySQL REPLACE支持使用SET设置值,DSC工具将对其转换。
输入
replace INTO `runoob_datatype_test` VALUES (100, 100, 100, 0, 1); replace INTO `runoob_datatype_test` VALUES (100.23, 100.25, 100.26, 0.12,1.5); replace INTO `runoob_datatype_test` (dataType_numeric,dataType_numeric1) VALUES (100.23, 100.25); replace INTO `runoob_datatype_test` (dataType_numeric,dataType_numeric1,dataType_numeric2) VALUES (100.23, 100.25, 2.34); replace into runoob_datatype_test set dataType_numeric=23.1, dataType_numeric4 = 25.12 ;
输出
INSERT INTO "public"."runoob_datatype_test" VALUES (100,100,100,0,1); INSERT INTO "public"."runoob_datatype_test" VALUES (100.23,100.25,100.26,0.12,1.5); INSERT INTO "public"."runoob_datatype_test" ("datatype_numeric","datatype_numeric1") VALUES (100.23,100.25); INSERT INTO "public"."runoob_datatype_test" ("datatype_numeric","datatype_numeric1","datatype_numeric2") VALUES (100.23,100.25,2.34); INSERT INTO "public"."runoob_datatype_test" ("datatype_numeric","datatype_numeric4") VALUES (23.1,25.12);