Question

def hello():
    def hi():
        h = input("Hey")
        if h == "Hey":
            print("hi")
            exit()
        exit()

Output

当SQL添加“备用批准人”（用于采购订单）时，它将为实际批准人创建一条附加记录。因此，试图找到一种方法来仅显示1条记录的批准人也有替代者。即“ jlhayes”有2条记录。一个带备用，另一个不带。对于这些记录，我只想查看具有备用记录的记录。谢谢您的帮助。我已经花了几个小时了，没想到。

Answer 1

您可以将AltApprover的case语句包装在max(AltApprover)中，并按DAC.LocationCode, DAC.Description, ReqApp.Rank, App.Approver分组，并对FromDate和ToDate进行类似的操作：

select DAC.LocationCode, DAC.Description, ReqApp.Rank, App.Approver as UserName,
max(CASE WHEN app.Approver = app.AlternateApprover THEN '' 
ELSE AltApp.AlternateApprover END) As AltApprover, 
max(ISNULL(CONVERT(Varchar,AltApp.FromDate,101),'')) AS FromDate,
max(ISNULL(CONVERT(Varchar,AltApp.ToDate,101),'')) AS ToDate
from tblAPAlternateApprovers App
INNER JOIN tblAPAlternateApprovers AltApp
ON App.ID = AltApp.ID
INNER JOIN tblAPReqLocations DAC
ON App.tblAPReqLocationsID = DAC.ID
INNER JOIN tblAPReqApprover ReqApp
ON App.Approver = ReqApp.Approver AND 
App.tblAPReqLocationsID = ReqApp.LocationID
GROUP BY DAC.LocationCode, DAC.Description, ReqApp.Rank, App.Approver
ORDER BY DAC.LocationCode ASC, ReqApp.Rank asc

SQL从结果中删除重复项

1 个答案: