TSQL - 总结联合查询

Question

我在存储过程中有联合所有查询。

我想要做的是和的列，该查询返回给客户端

我将如何做到这一点？

马尔科姆

Answer 1

SELECT 
    othercol1, othercol2, 
    SUM(bar) 
FROM 
    (
    SELECT 
     othercol1, othercol2, bar 
    FROM 
     RT 
    UNION ALL 
    SELECT 
     othercol1, othercol2, bar 
    FROM 
     FM 
    ) foo 
GROUP BY 
    othercol1, othercol2 

Answer 2

SELECT SUM(MyCol) FROM 
(
SELECT ... MyCol FROM Table1 
UNION ALL 
SELECT ... MyCol FROM Table2 
)as tbl