1. 解释“subquery returns more than 1 row”错误的含义 “subquery returns more than 1 row”错误意味着在一个SQL查询中,子查询(subquery)返回了多行数据,但根据上下文,该子查询的位置或用途只期望得到一行数据。例如,在某些情况下,子查询被用作条件或作为另一个查询的一部分,而数据库期望这些子查询只能返回一...
http://blog.csdn.net/c517984604/article/details/7052186 [Err] 1242 - Subquery returns more than 1 row --表示子查询返回了多行数据 例如: select * from table1 where table1.colums=(select columns from table2) 解决方法 1,select * from table1 where column=any(select columns from table2) 2,...
mysql报错:SQLSTATE[21000]: Cardinality violation: 1242 Subquery returns more than 1 row 错误的意思是指子查询结果多于一行。报错如下: 解决方法: 以select * from table1 where table1.colums=(select columns from table2);这个sql语句为例。 1)如果是写入重复,去掉重复数据。然后写入的时候,可以加逻辑判断...
这个提示是你子查询查到的结构不是一条，而是多条。所以匹配不上，看不到你表的结构，希望能帮到你
中间那个子查询 改成select top 1试试
会查出多个值,所以报Error Code: 1242. Subquery returns more than 1 row的错误解决的方法就是把where xxx = yyy变成where xxx in(yyy)或者where xxx = any yyy,这两个表达是一个意思,不过any还可以其他的比较,比如where xxx > any yyy 有用 回复 ...
On the duplicated product > Edit > General Tab > Delete Once you have removed the duplicate items, you can retry the queue error by following the steps below: Navigate to the failed order on your Stock2Shop console Click on the three dots > Try Again ...
select * from table2 where name in (select name from table1 where sex = 'M') and teacher = 'y'
insert into usecashnow(userid, zoneid, sn, aid, point, cash,status, creatime)select userid, '1', '0', '1', '100', '100', '1', '2014-03-17 00:55:15'from usecashlog where fintime > '2014-03-17 00:55:15';...
Msg 512, Level 16, State 1, Line 1 Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression. 对于错误代码:512 SELECT TOP 10 * from sys.messages WHERE message_id =512 --可以查询到...