集团通过排除空 - TSQL

我有下面的脚本：集团通过排除空 - TSQL

;;WITH CTE AS 
    (
     SELECT 
       RANK() OVER (PARTITION BY PortfolioID ORDER BY SUM(Percentage) DESC,MAX(SecurityName)) AS [Rank] 
      , ReportingDate 
      , PortfolioID 
      , PortfolioNme 
      , MAX(SecurityName)        AS SecurityName 
      , CAST(SUM(Percentage) AS DECIMAL(22,1))   AS [Weight] 
      , SEDOL 
      , MAX(ISIN)          AS ISIN 
     FROM @Worktable as WT 

     WHERE WT.IssueType2 <> '010' AND WT.IssueType2 <> '055' AND WT.IssueType1 <> '110' -- To remove CASH and FX and Collateral 

     GROUP BY WT.ReportingDate 
       , WT.PortfolioID 
       , WT.PortfolioNme 
       , WT.SEDOL 
    ) 

    SELECT 
      CONVERT(VARCHAR, ReportingDate, 103) AS ReportingDate 
     , PortfolioID       AS FundCode 
     , PortfolioNme       AS FundName 
     , SecurityName       AS InstrumentName 
     , [Rank] 
     , [Weight]        AS Percentage 
     , SEDOL 
     , ISIN 
    FROM CTE 

    WHERE [Rank] <= 10 

    ORDER BY ReportingDate, PortfolioID, [Rank], [Weight] DESC

我被SEDOL分组，因为我想相同组SEDOLs在一起，然而，这是造成NULLS组合到一起。我试着通过添加围绕SEDOL一个MAX并把改变脚本：

CASE 
    WHEN SEDOL IS NULL THEN SecurityName 
    ELSE SEDOL 
END

我在GROUP BY，但没有成功。

任何帮助非常感谢。

感谢

来源

2013-02-14 chrissy p

你可以尝试像ISNULL（SEDOL，SecurityName）作为涩涩中添加AND WT.SEDOL is not null。 ..和改变组由WT.Sese – futile 2013-02-14 12:41:26

，但我需要返回SEDOLS在最后选择，它是空的，我需要返回一个空的 – 2013-02-14 12:48:41

如何：

;;WITH CTE AS 
    (
     SELECT 
       RANK() OVER (PARTITION BY PortfolioID ORDER BY SUM(Percentage) DESC,MAX(SecurityName)) AS [Rank] 
      , ReportingDate 
      , PortfolioID 
      , PortfolioNme 
      , MAX(SecurityName)        AS SecurityName 
      , CAST(SUM(Percentage) AS DECIMAL(22,1))   AS [Weight] 
      , ISNULL(SEDOL, SecurityName) AS SEDOL 
      , MAX(ISIN)          AS ISIN 
     FROM @Worktable as WT 

     WHERE WT.IssueType2 <> '010' AND WT.IssueType2 <> '055' AND WT.IssueType1 <> '110' -- To remove CASH and FX and Collateral 

     GROUP BY WT.ReportingDate 
       , WT.PortfolioID 
       , WT.PortfolioNme 
       , ISNULL(WT.SEDOL, SecurityName) 
    ) 

    SELECT 
      CONVERT(VARCHAR, ReportingDate, 103) AS ReportingDate 
     , PortfolioID       AS FundCode 
     , PortfolioNme       AS FundName 
     , SecurityName       AS InstrumentName 
     , [Rank] 
     , [Weight]        AS Percentage 
     , SEDOL 
     , ISIN 
    FROM CTE 

    WHERE [Rank] <= 10 

    ORDER BY ReportingDate, PortfolioID, [Rank], [Weight] DESC

来源

2013-02-14 13:45:33

这就是我刚刚尝试。出于某种原因，ISNULL不工作，我不明白，即使我删除所有聚合和组我仍然无法让ISNULL工作。 – 2013-02-14 13:54:15

我将ISNULL（WT.SEDOL，安全名称）更改为： CASE when SEDOL =''那么SecurityName ELSE SEDOL END 感谢您的帮助，我知道这将是一件容易的事情 – 2013-02-14 14:05:48

这听起来像你想简单的CTE WHERE条款

来源

2013-02-14 16:06:30 bwperrin

集团通过排除空 - TSQL

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