子查询返回的值超过1。这是不允许的

我想要一个声明，如果两个日期（MaturityDate，PaymentDate）之间的差异大于1个月，将返回1。 到期日是客户应付款的到期日。子查询返回的值超过1。这是不允许的

我已经试过：

CASE WHEN DATEDIFF(MONTH, 
      (SELECT Date FROM dim.RepaymentSchedule rs JOIN dim.Calendar cal ON cal.DateID = rs.MaturityDateID), 
      (SELECT Date FROM dim.RepaymentSchedule rs JOIN dim.Calendar cal ON cal.DateID = rs.PaymentDateID)) 
       BETWEEN 1 AND 2 THEN 1 ELSE 0 END AS OneMonthDelay

这是模拟到

CASE WHEN DATEDIFF(MONTH, 2017-06-30, 2017-08-01) BETWEEN 1 AND 2 THEN 1 ELSE 0 END AS OneMonthDelay

，可惜的返回

子查询返回多个值。当子查询遵循=，！=，<，< =，>，> =或当子查询用作表达式时，这是不允许的。

任何帮助，将不胜感激。

编辑：整个查询

SELECT 
    pt.ProductType 
    ,sr.SalesRegionName 
    ,ca.CreditAdvisorID 
    ,cal.CalendarYearMonth 
    ,CASE WHEN DATEDIFF(MONTH, 
     (SELECT Date FROM dim.RepaymentSchedule rs JOIN dim.Calendar cal ON cal.DateID = rs.MaturityDateID), 
     (SELECT Date FROM dim.RepaymentSchedule rs JOIN dim.Calendar cal ON cal.DateID = rs.PaymentDateID)) 
      BETWEEN 1 AND 2 THEN 1 ELSE 0 END AS OneMonthDelay -- >1 <2 not =>1 =<2 
    ,CASE WHEN DATEDIFF(MONTH, 
     (SELECT Date FROM dim.RepaymentSchedule rs JOIN dim.Calendar cal ON cal.DateID = rs.MaturityDateID), 
     (SELECT Date FROM dim.RepaymentSchedule rs JOIN dim.Calendar cal ON cal.DateID = rs.PaymentDateID)) 
      BETWEEN 2 AND 3 THEN 1 ELSE 0 END AS TwoMonthsDelay 
    ,RANK() OVER (PARTITION BY c.ApplicationID ORDER BY rs.RepaymentNumber, rs.Amount) AS RankID 
INTO #Frauds 
FROM  
    dim.Contract c 
    JOIN dim.Application a   ON c.ApplicationID = a.ApplicationID 
    JOIN dim.Calendar cal   ON a.ApplicationDateID = cal.DateId 
    JOIN dim.CreditAdvisor ca  ON a.OriginalCreditAdvisorID = ca.CreditAdvisorId 
    JOIN dim.SalesRegion sr   ON ca.SalesRegionID = sr.SalesRegionId 
    JOIN dim.ProductType pt   ON a.ProductTypeID = pt.ProductTypeID 
    JOIN dim.RepaymentSchedule rs ON c.ContractID = rs.ContractID 
WHERE 
    ((cal.CalendarYear >= @YearId) AND (rs.MaturityDateID < @DateId)) -- Since given year to this date 
    AND ((rs.PaymentDateID = 19000101) OR (rs.PaymentDateID > rs.MaturityDateID)) 
    AND rs.Amount <> 0

来源

2017-08-14 Stanislav Jirák

错误非常明显。你能发布你的整个查询吗？ – HoneyBadger

使用相关的子查询或连接。 – jarlh

@HoneyBadger为整个查询编辑。 –

您可以尝试删除该连接在你的case语句和日历表，而加入与下面的所有其他表？

SELECT 
    pt.ProductType 
    ,sr.SalesRegionName 
    ,ca.CreditAdvisorID 
    ,cal.CalendarYearMonth 
    ,CASE WHEN DATEDIFF(MONTH, 
     cal.DATE, 
     cal1.DATE) 
      BETWEEN 1 AND 2 THEN 1 ELSE 0 END AS OneMonthDelay -- >1 <2 not =>1 =<2 
    ,CASE WHEN DATEDIFF(MONTH, 
     CASE WHEN DATEDIFF(MONTH, 
     cal.DATE, 
     cal1.DATE) 
      BETWEEN 2 AND 3 THEN 1 ELSE 0 END AS TwoMonthsDelay 
    ,RANK() OVER (PARTITION BY c.ApplicationID ORDER BY rs.RepaymentNumber, rs.Amount) AS RankID 
INTO #Frauds 
FROM  
    dim.Contract c 
    JOIN dim.Application a   ON c.ApplicationID = a.ApplicationID 
    JOIN dim.Calendar cal   ON a.ApplicationDateID = cal.DateId 
    JOIN dim.CreditAdvisor ca  ON a.OriginalCreditAdvisorID = ca.CreditAdvisorId 
    JOIN dim.SalesRegion sr   ON ca.SalesRegionID = sr.SalesRegionId 
    JOIN dim.ProductType pt   ON a.ProductTypeID = pt.ProductTypeID 
    JOIN dim.RepaymentSchedule rs ON c.ContractID = rs.ContractID 
    JOIN dim.Calender cal1 ON rs.MaturityDateID = cal1.DATEID 
    JOIN dim.Calender cal2 ON rs.PaymentDateID = cal2.DATEID 
WHERE 
    ((cal.CalendarYear >= @YearId) AND (rs.MaturityDateID < @DateId)) -- Since given year to this date 
    AND ((rs.PaymentDateID = 19000101) OR (rs.PaymentDateID > rs.MaturityDateID)) 
    AND rs.Amount <> 0

来源

2017-08-14 11:09:49 HappieFeet

虽然把日历表中FROM似乎最有意义，你的问题是在子查询rs表的重复。您可以尝试：

,CASE WHEN DATEDIFF(MONTH, 
    (SELECT Date FROM dim.Calendar cal WHERE cal.DateID = rs.MaturityDateID), 
    (SELECT Date FROM dim.Calendar cal WHERE cal.DateID = rs.PaymentDateID)) 
     BETWEEN 1 AND 2 THEN 1 ELSE 0 END AS OneMonthDelay -- >1 <2 not =>1 =<2 
,CASE WHEN DATEDIFF(MONTH, 
    (SELECT Date FROM dim.Calendar cal WHERE cal.DateID = rs.MaturityDateID), 
    (SELECT Date FROM dim.Calendar cal WHERE cal.DateID = rs.PaymentDateID)) 
     BETWEEN 2 AND 3 THEN 1 ELSE 0 END AS TwoMonthsDelay

来源

2017-08-14 11:16:42

子查询返回的值超过1。这是不允许的

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