MySQL中FOREIGN_KEY_CHECKS
2012-06-26 14:14
253 查看
禁用外码约束
SET FOREIGN_KEY_CHECKS=0;
启动外码约束
SET FOREIGN_KEY_CHECKS=1;
查看当前FOREIGN_KEY_CHECKS的值可用如下命令
SELECT @@FOREIGN_KEY_CHECKS;
SET FOREIGN_KEY_CHECKS=0;
启动外码约束
SET FOREIGN_KEY_CHECKS=1;
查看当前FOREIGN_KEY_CHECKS的值可用如下命令
SELECT @@FOREIGN_KEY_CHECKS;
相关文章推荐
- mysql启动和关闭外键约束的方法(FOREIGN_KEY_CHECKS)
- mysql启动和关闭外键约束的方法(FOREIGN_KEY_CHECKS)
- mysql启动和关闭外键约束的方法(FOREIGN_KEY_CHECKS)
- mysql ==SET FOREIGN_KEY_CHECKS==用法
- mysql启动和关闭约束的方法(FOREIGN_KEY_CHECKS)
- mysql启动和关闭外键约束的方法(FOREIGN_KEY_CHECKS)
- MySQL中FOREIGN_KEY_CHECKS相关
- mysql启动和关闭外键约束的方法(FOREIGN_KEY_CHECKS)
- [MySQL]MYSQL: Cannot delete or update a parent row: a foreign key constraint fails
- mysql添加外键失败:sql 1452 Cannot add or update a child row:a foreign key constraint fails
- 由于外键的存在引发的一个mysql问题 Cannot change column 'id': used in a foreign key constraint
- mysql基础(五) Mysql删除表时,报"Connot delete or update a parent row:a foreign key constraint fails"解决方案
- [Mysql]---Navicat --外键建立与cannot add foreign key constraint分析
- MYSQL: Cannot delete or update a parent row: a foreign key constraint fails
- mysql基础(六) 表删除时,报"Connot delete or update a parent row:a foreign key constraint fails"解决方案二
- mysql无法添加外键约束(cannot add foreign key constraint)
- MySQL error code 1217 (ER_ROW_IS_REFERENCED): Cannot delete or update a parent row: a foreign key co
- mysql foreign key(外键) 说明与实例
- MySQL Foreign Key
- MySQL删除表:Cannot delete or update a parent row: a foreign key constraint fails。