Question

INSERT INTO #Temp (id, id2, a, b) 
SELECT id, id2, a, b 
FROM SomeOneTable

我们通常从一个表中获取数据，如果（id和a）字段来自单独的表（id2和{，我们如何在临时表中插入数据？ {1}}）来自另一张桌子。我希望所有4个字段都在一个Temp表中。

Answer 1

以INNER JOIN为例

INSERT INTO #Temp (id, id2, a, b)
SELECT TABLE_A.ID, TABLE_B.ID2, TABLE_A.A, TABLE_B.B
FROM TABLE_A INNER JOIN TABLE_B ON TABLE_A.[primary_key] = TABLE_B.[foreign_key]

Answer 2

试试这个：

    INSERT INTO #Temp (id, id2, a, b) 
    SELECT id, id2, a, b 
    FROM SomeOneTable a inner join someonetable2 b on a.id=b.id2

Answer 3

不使用内部联接：假设您有两个表：Table1和Table2

INSERT INTO #TEMPTABLE (id, id2, a, b)

SELECT B.ID, C.ID2 , B.A, C.B FROM TABLE1 AS B , TABLE2 AS C

如何从SQL中的多个表向临时表插入数据

3 个答案: