在Where子句中的案例与

我试图根据case语句更改where子句的条件。问题是它不喜欢'between'语句。我可以在那里改变“Where”标准吗？这里是什么导致问题（关键字'之间'错误的语法。）我试图从日期范围内的PMF_FISCALCALENDAR表中获取财年。问题是一个日期范围可能是一个无效的数字，在这种情况下，我需要使用第二个日期。在Where子句中的案例与

关键词'between'之间的语法错误。

,(select PERIOD = 
    CASE 
     WHEN PERIOD = '1' THEN 
      'Jan'   
     WHEN Period = '2' THEN 
      'Feb' 
     WHEN PERIOD = '3' THEN 
      'Mar' 
     WHEN Period = '4' THEN 
      'Apr' 
     WHEN PERIOD = '5' THEN 
      'May' 
     WHEN Period = '6' THEN 
      'Jun' 
     WHEN PERIOD = '7' THEN 
      'Jul' 
     WHEN Period = '8' THEN 
      'Aug' 
     WHEN PERIOD = '9' THEN 
      'Sep' 
     WHEN Period = '10' THEN 
      'Oct' 
     WHEN PERIOD = '11' THEN 
      'Nov' 
     WHEN Period = '12' THEN 
      'Dec' 

    END 

FROM PMF_FISCALCALENDAR 
WHERE 
(CASE 
    WHEN YEAR(SALESQUOTATIONLINE.KTI_SENTDATE) = 1900 Then 
      SALESQUOTATIONLINE.KTI_SENTDATE between PMF_FISCALCALENDAR.STARTDATE and PMF_FISCALCALENDAR.ENDDATE 
     ELSE 
      SALESQUOTATIONTABLE.PMF_QUOTESENTDATE between PMF_FISCALCALENDAR.STARTDATE and PMF_FISCALCALENDAR.ENDDATE 
END) 
    ) AS 'Fiscal Month Sent'

我想使用一个或其他案例结果作为where子句条件。我使用的是SQL SERVER 2005

来源

2014-04-02 rigamonk

更改语句像

WHERE 
    CASE 
     WHEN YEAR(SALESQUOTATIONLINE.KTI_SENTDATE) = 1900 Then 
       SALESQUOTATIONLINE.KTI_SENTDATE 
      ELSE 
       SALESQUOTATIONTABLE.PMF_QUOTESENTDATE 
    END between PMF_FISCALCALENDAR.STARTDATE and PMF_FISCALCALENDAR.ENDDATE

来源

2014-04-02 13:24:42

这仍然充当如果 WHEN YEAR（SALESQUOTATIONLINE。 KTI_SENTDATE）= 1900然后 SALESQUOTATIONLINE.KTI_SENTDATE 如果它的1900返回null – rigamonk

试试这个更好的语法和性能：

SELECT PERIOD = convert(char(3), dateadd(m, PERIOD, -1), 0) 
FROM PMF_FISCALCALENDAR 
WHERE 
    SALESQUOTATIONLINE.KTI_SENTDATE < '1901-01-01' AND 
    SALESQUOTATIONLINE.KTI_SENTDATE >= '1900-01-01' AND 
    SALESQUOTATIONLINE.KTI_SENTDATE between PMF_FISCALCALENDAR.STARTDATE and PMF_FISCALCALENDAR.ENDDATE 
or 
    (SALESQUOTATIONLINE.KTI_SENTDATE < '1900-01-01' or 
    SALESQUOTATIONLINE.KTI_SENTDATE >= '1901-01-01' or 
    SALESQUOTATIONLINE.KTI_SENTDATE is null) AND 
    SALESQUOTATIONTABLE.PMF_QUOTESENTDATE between PMF_FISCALCALENDAR.STARTDATE and PMF_FISCALCALENDAR.ENDDATE

来源

2014-04-02 13:55:33

在Where子句中的案例与

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