SQL - 等于0

Question

我只想查询数据，当添加Amount列时，结果将为0，并且具有相同的ColumnA和ColumnB。但问题是当我在Group By中添加ColumnB时，我得到了错误的结果。它还返回其总和不为0的数据。

基本上：

Input:
    ColumnA,       ColumnB,           Amount
    123,             555,               10
    234,             555,              -25
    234,             555,               10
    234,             555,               15
    123,             555,               20

基本上我想要的结果是：

ColumnA,       ColumnB,           Amount
        234,             555,              -25
        234,             555,               10
        234,             555,               15

以下是我找到的代码：

SELECT * FROM table
WHERE ColumnA In
(
SELECT ColumnA FROM table
GROUP BY ColumnA, ColumnB
HAVING SUM(Amount)
)

对此有任何帮助吗？

Answer 1

这样的事情应该有效

select columnA
, columnB
, amount 
from table join 
(select columnA A
, columnB B
, sum(amount ) theSum
group by columnA, columnB ) temp on columnA = A 
and columnB = B
where theSum <> 0

Answer 2

SELECT *
  FROM t_column t1 -- your table name
 WHERE EXISTS (SELECT 1
                 FROM t_column t2 -- your table name
                WHERE t1.columnA = t2.columnA
                  AND t1.columnB = t2.columnB
               HAVING SUM(amount) = 0
              ) 

结果

columnA columnB amount
234     555     -25
234     555     10
234     555     15