Question

我将几个DischargeType值汇总到一个名为＆＃39; Appeals＆＃39;的类别中。这工作正常但是聚合字段MIN（DateReceived）导致结果为每个Appeals类型产生1个DateReceived值，当我只想要一个整个Appeals类别。我想我可以在GROUP BY子句中添加相同的CASE语句，但我不知道如何使用ROLL UP功能执行此操作。最后一行中的NULL值是总计行。感谢

<PRE>
CREATE PROCEDURE [dbo].[p_ReportMonthlySAEProcessing] 
@StartDate smalldatetime = NULL,
@EndDate smalldatetime = NULL
AS
BEGIN
    SELECT
    CASE  
        WHEN DischargeType = 'dqs' THEN 'Disqualifying Status'
        WHEN DischargeType = 'fraud' THEN 'Fraud'
        WHEN DischargeType = 'id theft' THEN 'ID Theft'
        WHEN DischargeType = 'unenforceable' THEN 'Unenforceable'
        WHEN DischargeType = 'unp' THEN 'Unpaid Refund'
        WHEN DischargeType = 'uns' THEN 'Unauthorized Signature/Payment'
        WHEN DischargeType IN ('atb appeal', 'cls appeal','dqs appeal','id 
        theft appeal','unp appeal','uns appeal') THEN 'Appeals'            
    END AS DischargeType 
   ,SUM(CASE WHEN (DateReceived > @StartDate AND DateReceived < DATEADD(dd, 
1, @EndDate)) THEN 1 ELSE 0 END) AS Claims_Received
   ,SUM(CASE WHEN (DateCompleted > @StartDate AND DateCompleted < 
DATEADD(dd, 1, @EndDate)) THEN 1 ELSE 0 END) AS Claims_Completed
   ,SUM(CASE WHEN DateCompleted IS NULL THEN 1 ELSE 0 END) AS Claims_Pending
   ,MIN(DateReceived) AS [Oldest_Claim]     
FROM 
Claims
GROUP BY 
    DischargeType WITH ROLLUP      
ORDER BY 
    CASE WHEN DischargeType IS NULL THEN 1 ELSE 0 END, DischargeType</pre>

当前结果：

期望的结果：

Answer 1

我会使用CTE https://docs.microsoft.com/en-us/sql/t-sql/queries/with-common-table-expression-transact-sql?view=sql-server-2017

WITH claimsGrp AS (
   SELECT
    CASE  
        WHEN DischargeType = 'dqs' THEN 'Disqualifying Status'
        WHEN DischargeType = 'fraud' THEN 'Fraud'
        WHEN DischargeType = 'id theft' THEN 'ID Theft'
        WHEN DischargeType = 'unenforceable' THEN 'Unenforceable'
        WHEN DischargeType = 'unp' THEN 'Unpaid Refund'
        WHEN DischargeType = 'uns' THEN 'Unauthorized Signature/Payment'
        WHEN DischargeType IN ('atb appeal', 'cls appeal','dqs appeal','id 
        theft appeal','unp appeal','uns appeal') THEN 'Appeals'            
    END AS DischargeType 
   ,
   CASE WHEN (DateReceived > @StartDate AND DateReceived < DATEADD(dd, 
1, @EndDate)) THEN 1 ELSE 0 END AS Claims_Received
   ,CASE WHEN (DateCompleted > @StartDate AND DateCompleted < 
DATEADD(dd, 1, @EndDate)) THEN 1 ELSE 0 END AS Claims_Completed
   ,CASE WHEN DateCompleted IS NULL THEN 1 ELSE 0 END AS Claims_Pending
   ,DateReceived AS [Oldest_Claim]     
FROM 
Claims)

SELECT claimsGrp.DischargeType,
       SUM(claimsGrp.Claims_Received),
       SUM(claimsGrp.Claims_Completed),
       SUM(claimsGrp.Claims_Pending)
       min([Oldest_Claim])
        FROM claimsGrp
GROUP BY 
    DischargeType WITH ROLLUP      
ORDER BY 
    CASE WHEN DischargeType IS NULL THEN 1 ELSE 0 END, DischargeType

Answer 2

您需要value构造：

SELECT cc.DischargeType,
       . . .
FROM Claims c CROSS APPLY (
        VALUES (CASE WHEN DischargeType = 'dqs' THEN 'Disqualifying Status'
                     WHEN DischargeType = 'fraud' THEN 'Fraud'
                     WHEN DischargeType = 'id theft' THEN 'ID Theft'
                     WHEN DischargeType = 'unenforceable' THEN 'Unenforceable'
                     WHEN DischargeType = 'unp' THEN 'Unpaid Refund'
                     WHEN DischargeType = 'uns' THEN 'Unauthorized Signature/Payment'
                     WHEN DischargeType IN ('atb appeal', 'cls appeal','dqs appeal','id 
    theft appeal','unp appeal','uns appeal') THEN 'Appeals'            
                END)
      ) cc (DischargeType)
GROUP BY cc.DischargeType WITH ROLLUP;

使用带有ROLL UP功能的CASE语句

2 个答案: