CASE什么时候GROUP BY返回重复值

我正在使用SQL Server 2012，并试图使用一个Case When Group By查询。结果给我在ProdType字段重复值。我知道这与我的分组条款有关。我的查询是：CASE什么时候GROUP BY返回重复值

SELECT   


CASE WHEN dbo.tblPayCode.PayCode IN (10,11,12,13,14,15,16,20,21,22,23,24,25,26,30,31,32,33,34,35,36) THEN 'WORK' 
    WHEN dbo.tblPayCode.PayCode > 39 AND dbo.tblPayCode.PayCode NOT IN (40,43,57,58,59,67,68,72,75,78,79) THEN 'SVLA' 
END AS ProdType, 

    dbo.tblJobsWorked.WrkDate, SUM(dbo.tblJobsWorked.Hours) AS TotalHours 

FROM   dbo.tblEmployees INNER JOIN 
         dbo.tblJobsWorked ON dbo.tblEmployees.EMP_NUMB = dbo.tblJobsWorked.EMP_NUMB INNER JOIN 
         dbo.tblPayCode ON dbo.tblJobsWorked.PayCode = dbo.tblPayCode.PayCode INNER JOIN 
         dbo.tblCostCenters ON dbo.tblEmployees.CC_ORGN_NUMB = dbo.tblCostCenters.CC_C_NB AND 
         dbo.tblEmployees.ORGN_DEPT_TYP_C = dbo.tblCostCenters.DEPT_TYP_C AND dbo.tblJobsWorked.CC_RSPB_NUMB = dbo.tblCostCenters.CC_C_NB AND 
         dbo.tblJobsWorked.RSPB_DEPT_TYP_C = dbo.tblCostCenters.DEPT_TYP_C 
GROUP BY 
dbo.tblPayCode.PayCode, dbo.tblJobsWorked.WrkDate 

HAVING  dbo.tblJobsWorked.WrkDate>'2013-04-30' 

ORDER BY dbo.tblJobsWorked.WrkDate

我的结果是

ProdType WrkDate TotalHours 
WORK 2013-05-01 00:00:00.000 58.70 
WORK 2013-05-01 00:00:00.000 5.20 
SVLA 2013-05-01 00:00:00.000 8.00 
SVLA 2013-05-01 00:00:00.000 8.00 
WORK 2013-05-01 00:00:00.000 68.00 
WORK 2013-05-01 00:00:00.000 825.40 
WORK 2013-05-01 00:00:00.000 8.90 
SVLA 2013-05-01 00:00:00.000 21.00 
SVLA 2013-05-01 00:00:00.000 8.00 
SVLA 2013-05-01 00:00:00.000 8.00 
WORK 2013-05-01 00:00:00.000 5.30 
SVLA 2013-05-01 00:00:00.000 53.00 
SVLA 2013-05-01 00:00:00.000 8.60

我期待看到13年5月1日与“工作”和“SVLA”及其相应的时间总共2行。非常感谢您的帮助！谢谢

来源

2015-10-05 niemoy

你应该将那个HAVING条件WHERE

WHERE dbo.tblJobsWorked.WrkDate>'2013-04-30'

你应该考虑修改您的查询像

SELECT ProdType, WrkDate, SUM(Hours) AS TotalHours FROM (
SELECT   
CASE WHEN dbo.tblPayCode.PayCode IN (10,11,12,13,14,15,16,20,21,22,23,24,25,26,30,31,32,33,34,35,36) THEN 'WORK' 
    WHEN dbo.tblPayCode.PayCode > 39 AND dbo.tblPayCode.PayCode NOT IN (40,43,57,58,59,67,68,72,75,78,79) THEN 'SVLA' 
END AS ProdType, 
dbo.tblJobsWorked.WrkDate, 
dbo.tblJobsWorked.Hours 

FROM   dbo.tblEmployees INNER JOIN 
         dbo.tblJobsWorked ON dbo.tblEmployees.EMP_NUMB = dbo.tblJobsWorked.EMP_NUMB INNER JOIN 
         dbo.tblPayCode ON dbo.tblJobsWorked.PayCode = dbo.tblPayCode.PayCode INNER JOIN 
         dbo.tblCostCenters ON dbo.tblEmployees.CC_ORGN_NUMB = dbo.tblCostCenters.CC_C_NB AND 
         dbo.tblEmployees.ORGN_DEPT_TYP_C = dbo.tblCostCenters.DEPT_TYP_C AND dbo.tblJobsWorked.CC_RSPB_NUMB = dbo.tblCostCenters.CC_C_NB AND 
         dbo.tblJobsWorked.RSPB_DEPT_TYP_C = dbo.tblCostCenters.DEPT_TYP_C 

WHERE dbo.tblJobsWorked.WrkDate > '2013-04-30' 
ORDER BY dbo.tblJobsWorked.WrkDate) xx 

GROUP BY ProdType, WrkDate;

来源

2015-10-05 19:27:04 Rahul

我做了一个好办法，以这和它的工作。 ORDER BY子句必须在子查询之外。感谢@Rahul的帮助 – niemoy

查询首先应用分组，然后才应用选择列表中的逐行计算。如果您希望将这些行组合在一起，则您也可以在group by子句中应用相同的case表达式。

来源

2015-10-05 19:25:58 Mureinik

CASE什么时候GROUP BY返回重复值

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