没有子查询的UPDATE引发错误:子查询返回多于1行 [英] UPDATE with no subquery throws error: Subquery returns more than 1 row
本文介绍了没有子查询的UPDATE引发错误:子查询返回多于1行的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
有人可以向我解释一下... :) (使用MySQL 5.6.13)
Can somebody explain to me this... :) (using MySQL 5.6.13)
UPDATE offer SET cosid=1 WHERE id=40;
Query OK, 1 row affected (0.07 sec)
Rows matched: 1 Changed: 1 Warnings: 0
UPDATE offer SET cosid=4 WHERE id=40;
ERROR 1242 (21000): Subquery returns more than 1 row
UPDATE offer SET cosid=5 WHERE id=40;
Query OK, 1 row affected (0.04 sec)
Rows matched: 1 Changed: 1 Warnings: 0
除四个:(
这是报价表:
CREATE TABLE offer (
id bigint(20) NOT NULL AUTO_INCREMENT,
authorid bigint(20) NOT NULL,
offered_designid bigint(20) NOT NULL,
cdid bigint(20),
cosid bigint(20) NOT NULL,
PRIMARY KEY (id),
UNIQUE INDEX (id)) ENGINE=InnoDB;
任何建议可能有什么问题吗?
Any suggestion what might be wrong?
已这是当前cos表:
SELECT * FROM cos;
+----+-------------+
| id | offer_state |
+----+-------------+
| 1 | active |
| 5 | cancelled |
| 3 | inactive |
| 4 | realized |
| 2 | waiting |
+----+-------------+
组5行(0.00秒)
推荐答案
正如ypercube在评论中所述,并且您已经确认,触发器是这里的罪魁祸首!
As ypercube has stated in the comments, and you have confirmed, triggers are the culprit here!
这篇关于没有子查询的UPDATE引发错误:子查询返回多于1行的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文