Question

我已经编写了一个查询来获取三个字段的总和，除了大多数字段总和为零。我只需要返回大于零的总和。以下是查询

SELECT [Product], 
SUM([Pounds]) as SumPounds, 
SUM([Dollars]) as SumDollars, 
SUM([EBITDA]) as SumEBITDA 
FROM MyTable 
WHERE ([Year] = '2017' AND [Date] <= #8/20/2017#) 
SORT BY [Product];

有没有办法只在Access中返回大于零的总和？

Answer 1

SELECT [Product], 
       SUM([Pounds]) as SumPounds, 
       SUM([Dollars]) as SumDollars, 
       SUM([EBITDA]) as SumEBITDA 
FROM MyTable 
WHERE ([Year] = '2017' AND [Date] <= #8/20/2017#) 
GROUP BY [Product]
HAVING SUM([Pounds]) + SUM([Dollars]) + SUM([EBITDA]) > 0

Answer 2

您可以使用HAVING过滤聚合函数的结果

SELECT [Product], 
SUM([Pounds]) as SumPounds, 
SUM([Dollars]) as SumDollars, 
SUM([EBITDA]) as SumEBITDA 
FROM MyTable 
WHERE ([Year] = '2017' AND [Date] <= #8/20/2017#) 
HAVING UM([Pounds]) >0  AND SUM([Dollars]) > 0 AND SUM([EBITDA]) >0
SORT BY [Product];

如果您需要所有3个值，您可以使用AND，如上面的答案，如果您只需要一个，您可以使用OR

SQL Sum，返回非零的字段

2 个答案: