mysql的表锁和解除表锁

1、查询是否锁表
show OPEN TABLES where In_use > 0;

2、查询进程

show processlist
查询到相对应的进程===然后 kill id

补充：

查看正在锁的事务

SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCKS;

查看等待锁的事务

SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS;

SHOW STATUS LIKE '%lock%'

SHOW ENGINE INNODB STATUS

SHOW VARIABLES LIKE '%timeout%';