LEFT JOIN上的嵌套Select语句

Question

我正在过滤我的表F0005有问题.我尝试了很多不同的查询方法.我想要完成的是在加入之前对F0005进行过滤.

这就是我希望它被过滤的结果,结果在那张桌子上是完美的.

SELECT LTRIM(F0005.DRKY), F0005.DRDL01, F0005.DRRT, F0005.DRSY
    FROM
            SENCOM.F0005 F0005
            WHERE LTRIM(F0005.DRKY) != '' AND F0005.DRRT IN ('W1','08') AND F0005.DRSY NOT IN ('30','32','98')

这是我的整个查询以及我在加入表之前过滤表的尝试.

SELECT
    FSALES2011.SXAN8,
    FSALES2011.SXCO   AS Company,
    FSALES2011.SXMCU  AS BuisinessUnit,
    FSALES2011.SXLITM AS ItemNumber,
    FSALES2011.SXSLSM AS SalesPersonCode,
    FSALES2011.SXDCTO AS OrderType,
    FSALES2011.SXSLD1 AS SoldTo,
    FSALES2011.SXADD1 AS Address,
    FSALES2011.SXRP01 AS Division,
    FSALES2011.SXRP02 AS Location,
    FSALES2011.SXCI13+FSALES2011.SXCI14+FSALES2011.SXCI15+FSALES2011.SXCI16+FSALES2011.SXCI17+
    FSALES2011.SXCI18+FSALES2011.SXCI19+FSALES2011.SXCI20+FSALES2011.SXCI21+FSALES2011.SXCI22+
    FSALES2011.SXCI23+FSALES2011.SXCI24 AS PurchasePrice,
    FSALES2011.SXAS13+FSALES2011.SXAS14+FSALES2011.SXAS15+FSALES2011.SXAS16+FSALES2011.SXAS17+
    FSALES2011.SXAS18+FSALES2011.SXAS19+FSALES2011.SXAS20+FSALES2011.SXAS21+FSALES2011.SXAS22+
    FSALES2011.SXAS23+FSALES2011.SXAS24 AS SalesPrice,
    F4801.WAAN8,
    F4801.WAWR01         AS WoType,
    DIGITS(F4801.WADOCO) AS F4801ItemNumber,
    F0101.ABAN8,
    F0101.ABAC15              AS F0101CustomerType,
    F0006.MCRP08              AS JobType,
    SUBSTR(F0006.MCMCU,6,7)   AS F0006BuisnessUnit,
    LTRIM(F0005Filtered.DRKY) AS UDC,
    F0005Filtered.DRDL01      AS Description,
    F0005Filtered.DRRT,
    F0005Filtered.DRSY
  FROM
    SENDTA.F0101 F0101
  JOIN
    JDEMOD.FSALES2011 FSALES2011
  ON
    FSALES2011.SXAN8 = F0101.ABAN8
  LEFT OUTER JOIN
    SENDTA.F0006 F0006
  ON
    FSALES2011.SXLITM = SUBSTR(F0006.MCMCU,6,7)
  LEFT OUTER JOIN
    SENDTA.F4801 F4801
  ON
    FSALES2011.SXLITM = DIGITS(F4801.WADOCO)
  LEFT OUTER JOIN
    (
        SELECT
            LTRIM(F0005.DRKY),
            F0005.DRDL01,
            F0005.DRRT,
            F0005.DRSY
            FROM
            SENCOM.F0005 F0005
        WHERE
            LTRIM(F0005.DRKY) != ''
        AND F0005.DRRT IN ('W1',
                           '08')
        AND F0005.DRSY NOT IN ('30',
                               '32',
                               '98')) F0005Filtered
  ON
    ABAC15 = F0005Filtered.DRKY

当我尝试这个时,我得到列错误,SQL0205]列DRKY不在*N中的表F0005FILTERED中.

感谢您的帮助,我对此有点新鲜,并且没有想法!:)

非常感谢大家,我的问题是我的嵌套选择的格式,但也有一些完全不同的东西.我加入了错误的字段,所以没有匹配,这就是为什么我得到了NULL!再次感谢!!

这是最终版本.我愿意接受一些优化建议.否则很高兴它完成了!

    SELECT
    FSALES2011.SXAN8,
    FSALES2011.SXCO   AS Company,
    FSALES2011.SXMCU  AS BuisinessUnit,
    FSALES2011.SXLITM AS ItemNumber,
    FSALES2011.SXSLSM AS SalesPersonCode,
    FSALES2011.SXDCTO AS OrderType,
    FSALES2011.SXSLD1 AS SoldTo,
    FSALES2011.SXADD1 AS Address,
    FSALES2011.SXRP01 AS Division,
    FSALES2011.SXRP02 AS Location,
    FSALES2011.SXCI13+FSALES2011.SXCI14+FSALES2011.SXCI15+FSALES2011.SXCI16+FSALES2011.SXCI17+
    FSALES2011.SXCI18+FSALES2011.SXCI19+FSALES2011.SXCI20+FSALES2011.SXCI21+FSALES2011.SXCI22+
    FSALES2011.SXCI23+FSALES2011.SXCI24 AS PurchasePrice,
    FSALES2011.SXAS13+FSALES2011.SXAS14+FSALES2011.SXAS15+FSALES2011.SXAS16+FSALES2011.SXAS17+
    FSALES2011.SXAS18+FSALES2011.SXAS19+FSALES2011.SXAS20+FSALES2011.SXAS21+FSALES2011.SXAS22+
    FSALES2011.SXAS23+FSALES2011.SXAS24 AS SalesPrice,
    F4801.WAAN8,
    F4801.WAWR01         AS WoType,
    DIGITS(F4801.WADOCO) AS F4801ItemNumber,
    F0101.ABAN8,
    F0101.ABAC15            AS F0101CustomerType,
    F0006.MCRP08            AS JobType,
    SUBSTR(F0006.MCMCU,6,7) AS F0006BuisnessUnit,
    LTRIM(UDC.DRKY)         AS Code,
    --UDC.DRDL01              AS JobDescription,
    --UDC2.DRDL01             AS WODescription,
    COALESCE(UDC.DRDL01,UDC2.DRDL01) AS WorkPerformed,
    UDC3.DRDL01                      AS CustomerDescription
FROM
    SENDTA.F0101 F0101
JOIN
    JDEMOD.FSALES2011 FSALES2011
ON
    FSALES2011.SXAN8 = F0101.ABAN8
LEFT OUTER JOIN
    SENDTA.F0006 F0006
ON
    FSALES2011.SXLITM = SUBSTR(F0006.MCMCU,6,7)
LEFT OUTER JOIN
    SENDTA.F4801 F4801
ON
    FSALES2011.SXLITM = DIGITS(F4801.WADOCO)
LEFT OUTER JOIN
    SENCOM.F0005 UDC
ON
    F0006.MCRP08 = LTRIM(UDC.DRKY)
AND LTRIM(UDC.DRKY) != ''
AND UDC.DRRT IN ('W1',
                 '08')
AND UDC.DRSY NOT IN ('30',
                     '32',
                     '98')
LEFT OUTER JOIN
    SENCOM.F0005 UDC2
ON
    F4801.WAWR01 = LTRIM(UDC2.DRKY)
AND LTRIM(UDC2.DRKY) != ''
AND UDC2.DRRT IN ('W1',
                  '08')
AND UDC2.DRSY NOT IN ('30',
                      '32',
                      '98')
LEFT OUTER JOIN
    SENCOM.F0005 UDC3
ON
    F0101.ABAC15 = LTRIM(UDC3.DRKY)
AND LTRIM(UDC3.DRKY) != ''
AND UDC3.DRRT IN ('15')

Answer 1

如果在函数中包装字段,则需要在之后对其进行命名.

更改LTRIM(F0005.DRKY),到LTRIM(F0005.DRKY) AS DRKY,

Answer 2

在嵌套查询中,您缺少DRKY的别名:

SELECT
            LTRIM(F0005.DRKY) as DRKY,
            F0005.DRDL01,
            F0005.DRRT,
            F0005.DRSY
            FROM SENCOM.F0005 F0005
        WHERE LTRIM(F0005.DRKY) != ''
        AND F0005.DRRT IN ('W1',
                           '08')
        AND F0005.DRSY NOT IN ('30',
                               '32',
                               '98')) F0005Filtered

如果在没有返回别名的情况下没有别名 LTRIM(F0005.DRKY)

Answer 3

您需要在过滤表中命名计算列.

SELECT LTRIM(F0005.DRKY) AS DRKY, F0005.DRDL01, F0005.DRRT, F0005.DRSY
FROM SENCOM.F0005 F0005
WHERE LTRIM(F0005.DRKY) != '' 
   AND F0005.DRRT IN ('W1','08') 
   AND F0005.DRSY NOT IN ('30','32','98')

注意 AS DRKY