错误代码： 1100 Table 't_depart_info' was not locked with LOCK TABLES

1、错误描述

1 queries executed, 0 success, 1 errors, 0 warnings

查询：insert into emp values(11,'h',23,'女')

错误代码： 1100
Table 't_depart_info' was not locked with LOCK TABLES

执行耗时   : 0 sec
传送时间   : 0 sec
总耗时      : 0 sec

2、错误原因

     将emp数据库表READ锁定：LOCK TABLE emp READ;

     在向emp插入数据，并调用触发器insert_data

DELIMITER $$

USE `test`$$

DROP TRIGGER /*!50032 IF EXISTS */ `insert_data`$$

CREATE
    /*!50017 DEFINER = 'root'@'localhost' */
    TRIGGER `insert_data` BEFORE INSERT ON `emp` 
    FOR EACH ROW BEGIN
	INSERT INTO t_depart_info(id,depart_name,depart_teacher) VALUES(7,'hai','hugang');
    END;
$$

DELIMITER ;

3、解决办法

     释放锁

UNLOCK TABLES;