我有一张桌子Emp其中有这些行：
Emp_cd | Val1 | Val2 | Val3 | Total
-------+-------+-------+-------+-------
1 | 1.23 | 2.23 | 3.43 |
2 | 23.03 | 12.23 | 2.92 |
3 | 7.23 | 9.05 | 13.43 |
4 | 03.21 | 78.23 | 9.43 |
我想找到SUM of Val1, Val2, Val3并将显示在Total column.
Easy:
SELECT
Val1,
Val2,
Val3,
(Val1 + Val2 + Val3) as 'Total'
FROM Emp
或者如果你只想要一行：
SELECT
SUM(Val1) as 'Val1',
SUM(Val2) as 'Val2',
SUM(Val3) as 'Val3',
(SUM(Val1) + SUM(Val2) + SUM(Val3)) as 'Total'
FROM Emp
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