Question

对于SSRS报告，我根据用户输入通过使用Case来回复3年不同年份的收入。

DECLARE @Year as int
Set @Year = 2018
DECLARE @Period as int
Set @Period = 1

SELECT Account
, Customer
, CustomerDescription
, Article
, ArticleDescription
, Sum (Case when Year = @Year -2 then NNNRevenue Else 0 End) as RevenueP2
, Sum (Case when Year = @Year -1 then NNNRevenue Else 0 End) as RevenuePY
, Sum (Case when Year = @Year then NNNRevenue Else 0 End) as RevenueCY
 FROM [PP_Test].[dbo].[History]
 WHERE Line = 'Inkoopartikel'
And Period = @Period
 GROUP BY Account, customer, CustomerDescription, Article, ArticleDescription

示例结果：

Account  Customer  CustomerDescription  Article  ArticleDescription  RevenueP2   RevenuePY  RevenueCY 
A        A         CustomerA            1234     Transport           0           0          0
A        A         CustomerA            2345     Croissant           12,15       0          14578,87

现在，当我有一篇2015年出售的文章时，它在我的3个收入列中显示为0。我想消除那些null / 0行。

我通过添加以下

找到了mysql的解决方案

 HAVING RevenueP2 <> 0

然而，这不适用于Server management studio，因为我无法引用新列。

有没有办法解决这个问题？

Answer 1

你可以通过两种方式做到这一点

将聚合函数放入HAVING子句

HAVING Sum (Case when Year = @Year -2 then NNNRevenue Else 0 End) <> 0

使用派生表概念

SELECT * 
FROM(
  Paste your query here wihtout where clause
)m
Where RevenueP2 <> 0

Answer 2

having Sum (Case when Year = @Year -2 then NNNRevenue Else 0 End) <> 0

返回空结果行时的情况

2 个答案: