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  • SQL 递归使用

    直接贴代码吧= =

    WITH CTE AS  
      (  
      -->Begin 一个定位点成员  
       SELECT COUNTRYORDERID,HSNAME, COUNTRYNAME,PARENTORDERID,
       IMPORTCURRENTSUMAMOUNT,
       IMPORTCONTRASTSUMAMOUNTPERCENTAGE,
       IMPORTCURRENTSUMAMOUNTPERCENTAGE,
       CAST(COUNTRYNAME AS NVARCHAR(max)) AS TE,0 AS Levle FROM #TempTableDetail
        WHERE PARENTORDERID IS NULL AND HSNAME IN (SELECT HSNAME FROM #TempTableData)
      -->End  
      UNION ALL  
      -->Begin一个递归成员  
       SELECT #TempTableDetail.COUNTRYORDERID, #TempTableDetail.HSNAME, #TempTableDetail.COUNTRYNAME,#TempTableDetail.PARENTORDERID,
       #TempTableDetail.IMPORTCURRENTSUMAMOUNT,
       #TempTableDetail.IMPORTCONTRASTSUMAMOUNTPERCENTAGE,
       #TempTableDetail.IMPORTCURRENTSUMAMOUNTPERCENTAGE,
       CAST(REPLICATE('  ',LEN(CTE.TE))+#TempTableDetail.COUNTRYNAME AS NVARCHAR(MAX)) AS TE,Levle+1 AS Levle  
        FROM #TempTableDetail INNER JOIN CTE  
        ON #TempTableDetail.PARENTORDERID=CTE.COUNTRYORDERID  
        --group by #TempTableDetail.HSNAME
        WHERE #TempTableDetail.HSNAME IN (SELECT HSNAME FROM #TempTableData)
      -->End  
      )
    
      INSERT INTO #TempResult(COUNTRYORDERID,HSNAME,COUNTRYNAME,IMPORTCONTRASTSUMAMOUNTPERCENTAGE,IMPORTCURRENTSUMAMOUNTPERCENTAGE,IMPORTCURRENTSUMAMOUNT)
      SELECT DISTINCT COUNTRYORDERID, HSNAME,TE,IMPORTCONTRASTSUMAMOUNTPERCENTAGE,
       IMPORTCURRENTSUMAMOUNTPERCENTAGE,IMPORTCURRENTSUMAMOUNT FROM CTE ORDER BY HSNAME,COUNTRYORDERID;

    效果:


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  • 原文地址:https://www.cnblogs.com/wzjhoutai/p/7086973.html
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