mysql delete两种关联删除方式

最新推荐文章于 2025-04-24 11:46:59 发布

dfsafsd32323

最新推荐文章于 2025-04-24 11:46:59 发布

阅读量1k

点赞数 1

文章标签：数据库

原文链接：http://www.cnblogs.com/simpledev/p/6291202.html

版权

基本格式:

DELETE t1 FROM t1,t2 WHERE t1.id=t2.id 或 DELETE FROM t1 USING t1,t2 WHERE t1.id=t2.id

示例应用:

DELETE coupon FROM coupon,member WHERE coupon.mem_no=member.reg_no AND coupon.`status`=0 AND coupon.`batch_no`='yaoqingpengyou001' AND member.`mobile` IN (
182xxxx9886
)

//关联用户表，根据手机号码查询该会员号对应的券（批次号为yaoqingpengyou001且未使用status=0）删除。

DELETE FROM coupon USING coupon,member WHERE coupon.mem_no=member.reg_no AND coupon.`status`=0 AND coupon.`batch_no`='yaoqingpengyou001' AND member.`mobile` IN (
182xxxx9886
)

转载于:https://www.cnblogs.com/simpledev/p/6291202.html