GROUP BY CASE带 - TSQL

Question

我有一个选择，它看起来像以下：

SELECT 
     ReportingDate 
    , PortfolioID 
    , PortfolioNme 

    , CASE 
      WHEN @ReportType = 'GeoCountry' THEN Infoportal.dbo.fn_Generic_ProperCase(Country) 
      WHEN @ReportType = 'GeoEquity' THEN Region 
     END     AS Country 

    , RANK() OVER (PARTITION BY PortfolioID ORDER BY SUM(Percentage) DESC, CASE WHEN @ReportType = 'GeoCountry' THEN Country WHEN @ReportType = 'GeoEquity' THEN Region END) AS [Rank] 
    , SUM(Percentage)  AS [Weight] 

FROM @Worktable as WT 

WHERE WT.IssueType1 <> '010' AND WT.IssueType2 <> '055' 

GROUP BY WT.ReportingDate 
     , WT.PortfolioID 
     , WT.PortfolioNme 
     , CASE 
       WHEN @ReportType = 'GeoCountry' THEN WT.Country 
       WHEN @ReportType = 'GeoEquity' THEN WT.Region 
      END  

我想要做的是按国家或地区根据@ReportType和显示的总和百分比和排名。

不过，我不断收到错误：

Msg 8120, Level 16, State 1, Line 349
Column '@Worktable.Country' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.
Msg 8120, Level 16, State 1, Line 350
Column '@Worktable.Region' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.

这是很容易的，这是真的讨厌我。帮助将不胜感激。

感谢

Answer 1

我相信CTE会simplfy你想要做什么：

;WITH WT AS (
    SELECT 
     ReportingDate 
    , PortfolioID 
    , PortfolioNme 

    , CASE 
      WHEN @ReportType = 'GeoCountry' 
       THEN Infoportal.dbo.fn_Generic_ProperCase(Country) 
      WHEN @ReportType = 'GeoEquity' 
       THEN Region 
     END AS Country 
    , Percentage 
FROM @Worktable 
WHERE IssueType1 <> '010' AND IssueType2 <> '055' 
) 
SELECT 
     ReportingDate 
    , PortfolioID 
    , PortfolioNme 
    , Country 
    , RANK() OVER (
      PARTITION BY PortfolioID 
      ORDER BY SUM(Percentage) DESC, Country) AS [Rank] 
    , SUM(Percentage) AS [Weight] 
FROM WT 
GROUP BY 
     ReportingDate 
    , PortfolioID 
    , PortfolioNme 
    , Country 

Answer 2

select ReportingDate, PortfolioID, PortfolioNme, Country, RANK() OVER (PARTITION BY PortfolioID ORDER BY SUM(Percentage) DESC, CountryOrRegion) AS [Rank], SUM(Percentage)  AS [Weight] 
from (
    SELECT 
      ReportingDate 
     , PortfolioID 
     , PortfolioNme 
     , CASE WHEN @ReportType = 'GeoCountry' THEN Country WHEN @ReportType = 'GeoEquity' THEN Region END as CountryOrRegion 
     , CASE 
       WHEN @ReportType = 'GeoCountry' THEN Infoportal.dbo.fn_Generic_ProperCase(Country) 
       WHEN @ReportType = 'GeoEquity' THEN Region 
      END     AS Country 
    FROM @Worktable as WT 
    WHERE WT.IssueType1 <> '010' AND WT.IssueType2 <> '055' 
) t 
GROUP BY WT.ReportingDate 
     , WT.PortfolioID 
     , WT.PortfolioNme 
     , CountryOrRegion