sql – 使用子查询插入多行

发布时间：2020-12-12 06:22:06 所属栏目：MsSql教程来源：网络整理

导读：这是查询： INSERT INTO qualification_lookup (variation,correct_qualification)SELECT (SELECT Qualification FROM student WHERE Qualification like 'A%'),'A-Level' 这是我尝试执行查询时得到的错误. Msg 512,Level 16,State 1,Line 1 Subquery returne

这是查询：

INSERT INTO qualification_lookup (variation,correct_qualification)
SELECT (SELECT Qualification FROM student WHERE Qualification like 'A%'),'A-Level'

这是我尝试执行查询时得到的错误.

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. The statement has been terminated.

如果有人告诉我任何替代方法,我是SQL新手.

解决方法

INSERT INTO qualification_lookup (variation,correct_qualification) 
select Qualification,'A-Level' from student   where Qualification like 'A%'

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!