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两条SQL语句如何写成一条

发布时间: 2013-04-21 21:18:07 作者: rapoo

两条SQL语句怎么写成一条
[A表]
Lidid
11

[B表]
Cidid
61
71
81
91

SELECT [Lid] FROM [A表] WHERE [id]=1
SELECT [Cid] FROM [B表] WHERE [id]=1
我要读出A表的[Lid]的字段值和B表的[Cid]的字段值
这两条SQL语句怎么写成一条

并得到的结果是
1
6
7
8
9
[解决办法]
SELECT [Lid] FROM [A表] WHERE [id]=1 union all
SELECT [Cid] FROM [B表] WHERE [id]=1

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