LEFT JOIN上的嵌套Select語句

Question

我正在過濾我的表F0005有問題。 我嘗試過很多種不同的查詢方法。 我想要完成的是在加入之前對F0005進行過濾。

這就是我希望它被過濾的結果，結果在那張桌子上是完美的。

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')

這是我的整個查詢以及我在加入表之前過濾表的嘗試。

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

當我嘗試這個時，我得到列錯誤，SQL0205]列DRKY不在* N中的表F0005FILTERED中。

感謝您的幫助，我對此有點新鮮，並且沒有想法！ :)

非常感謝大家，我的問題是我的嵌套選擇的格式，但也有一些完全不同的東西。 我加入了錯誤的字段，所以沒有匹配，這就是為什么我得到了NULL！ 再次感謝！！

這是最終版本。 我願意接受一些優化建議。 否則很高興它完成了！

    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

如果在函數中包裝字段，則需要在之后對其進行命名。

將LTRIM(F0005.DRKY),更改為LTRIM(F0005.DRKY) AS DRKY,

Answer 2

在嵌套查詢中，您缺少DRKY的別名：

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

如果在沒有返回LTRIM(F0005.DRKY)列名時沒有別名LTRIM(F0005.DRKY)

Answer 3

您需要在過濾表中命名計算列。

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

Answer 4

你真的需要重新格式化你的問題，但我相信我知道你哪里出錯了。

您的表別名F0005Filtered不是JDE用戶定義代碼表的別名。 您已經創建了一個子選擇，這是F0005Filtered實際代表的。

此外，在該子選擇內，您沒有名為DRKY的列。

您正在該字段上使用TRIM函數而不指定列名稱。

要修復，只需重新創建別名： -

LTRIM(F0005.DRKY) AS DRKY

編輯

回應用戶提問。

為什么不將IN語句作為JOIN條件的一部分？

LEFT OUTER JOIN
    SENCOM.F0005 UDC
ON  LTRIM(UDC.DRKY) != ''
AND ABAC15 = TRIM(UDC.DRKY)
AND UDC.DRRT IN ('W1','08')
AND UDC.DRSY NOT IN ('30', '32','98')

用戶定義的代碼表往往不會那么大。 我為一家大型跨國公司做了一些工作，我們的工作量大約為70K。