3 rows in set (0.00 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 使用TRUNCATE 语句清空 tb_student_course 表中的记录,SQL 语句和运行结果如下: mysql> TRUNCATE TABLE tb_student_course; Query OK, 0 rows affected (0.04 sec) mysql> SELECT * ...
selectCONCAT('truncate TABLE ',table_schema,'.',TABLE_NAME,';')fromINFORMATION_SCHEMA.TABLESwheretable_schemain('数据库1','数据库2'); AI代码助手复制代码 以名为dbname的数据库为例,执行select语句: mysql>selectCONCAT('truncate TABLE ',table_schema,'.',TABLE_NAME,';')fromINFORMATION_SCHEMA.TAB...
新建表 tb_student_course,插入数据并查询,SQL 语句和运行结果如下: mysql>CREATETABLE`tb_student_course` (->`id`int(4)NOTNULLAUTO_INCREMENT,->`name`varchar(25)NOTNULL,->PRIMARYKEY(`id`)->); Query OK,0rows affected (0.04sec) mysql>INSERTINTOtb_student_course(name)VALUES('Java'),('MySQL...
Replication of the mysql System Schema Replication and the Query Optimizer Replication and Partitioning Replication and REPAIR TABLE Replication and Reserved Words Replication and Row Searches Replication and Source or Replica Shutdowns Replica Errors During Replication Replication and Server SQL...
mysql> truncate TABLE dbname.ZONESERVICE;Query OK, 0 rows affected mysql> 这样就清空数据库中所有表啦，简单吧~truncate与drop,delete的对⽐ 上⾯说过truncate与delete，drop很相似，其实这三者还是与很⼤的不同的，下⾯简单对⽐下三者的异同。truncate与drop是DDL语句，执⾏后⽆法回滚；delete是DML...
在mysql中,如果对表执行truncate操作后,会重新设置auto_increment的值,比如: root@localhost (none)>use abce; Database changed root@localhost abce>create table test(id in
| mysql | | test | +---+ 3 rows in set (0.00 sec) mysql> use mysql; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> show...
mysql>deletefrom db1.t1 where name='aaa';QueryOK,1rowaffected(0.01sec)mysql>select*from db1.t1;Emptyset(0.00sec) 2.4 删除整个表内的所有数据truncate(有时候表内的数据比较多,一个一个地删除会浪费很长时间,我们需要一次性全部搞定): 代码语言:javascript ...
[ERROR] Error running query, slave SQL thread aborted. Fix the problem, and restart the slave SQL thread with "SLAVE START". We stopped at log 'mysql-bin.***' position ***. 相关时间点,没有其他的报错,且日志级别为3。 当然这里表做了屏蔽,但是错误就是这个。
MySQL 8.0 切换对比 // TRUNCATE // 默认规范配置 // innodb_flush_method = on & innodb_flush_method = O_DIRECT (root@127.1) [eolbimsdb] 08:44:46 15> truncate table t5; Query OK, 0 rows affected (0.98 sec) // 设置 innodb_adaptive_hash_index = off ...