MS Access SQL（Jet SQL）|語法錯誤（缺失的遺產）

我正在寫一個查詢在MS Access SQL做一些數學。MS Access SQL（Jet SQL）|語法錯誤（缺失的遺產）

SELECT 
    DISTINCT QParts.PartsNumber, 
    SWITCH(([dbo_ICILOC].[QTYONHAND] + [dbo_ICILOC].[QTYRENOCST] + [dbo_ICILOC].[QTYADNOCST] - [dbo_ICILOC].[QTYSHNOCST] - [dbo_ICILOC].[QTYCOMMIT]) IS NULL, 
      0, 
      ([dbo_ICILOC].[QTYONHAND] + [dbo_ICILOC].[QTYRENOCST] + [dbo_ICILOC].[QTYADNOCST] - [dbo_ICILOC].[QTYSHNOCST] - [dbo_ICILOC].[QTYCOMMIT]) <= 0, 
      0, ([dbo_ICILOC].[QTYONHAND] + [dbo_ICILOC].[QTYRENOCST] + [dbo_ICILOC].[QTYADNOCST] - [dbo_ICILOC].[QTYSHNOCST] - [dbo_ICILOC].[QTYCOMMIT]) >= 0, 
      ([dbo_ICILOC].[QTYONHAND] + [dbo_ICILOC].[QTYRENOCST] + [dbo_ICILOC].[QTYADNOCST] - [dbo_ICILOC].[QTYSHNOCST] - [dbo_ICILOC].[QTYCOMMIT])) AS avqty, 
    SWITCH(dbo_ICILOC.QTYONORDER IS NULL, 
      0, 
      dbo_ICILOC.QTYONORDER >= 0, 
      (([AESTUSA.QTYONORDER] + [dbo_ICILOC].[QTYONORDER]) + SUM(IIf(([dbo_ICILOC].[QTYONHAND] - [dbo_ICILOC].[QTYCOMMIT]) > 0, 
      0, 
      ([dbo_ICILOC].[QTYONHAND] - [dbo_ICILOC].[QTYCOMMIT])))) AS qtyorder 
FROM 
    QParts 
LEFT JOIN 
    dbo_ICILOC ON 
     QParts.PartsNumber = dbo_ICILOC.ITEMNO 
    AND 
     dbo_ICILOC.LOCATION = "UBN"  
LEFT JOIN 
    dbo_ICILOC AS AESTUSA ON 
     QParts.PartsNumber = AESTUSA.ITEMNO 
    AND 
     AESTUSA.LOCATION = "UBCUST";

但這個查詢給了我很多錯誤。我錯過了什麼？

來源

2016-01-12 B. Erdenebilig

我認爲你的連接是錯誤的。將條件移到Where子句中：

SELECT DISTINCT QParts.PartsNumber 
    ,switch(([dbo_ICILOC].[QTYONHAND] + [dbo_ICILOC].[QTYRENOCST] + [dbo_ICILOC].[QTYADNOCST] - [dbo_ICILOC].[QTYSHNOCST] - [dbo_ICILOC].[QTYCOMMIT]) IS NULL, 0, ([dbo_ICILOC].[QTYONHAND] + [dbo_ICILOC].[QTYRENOCST] + [dbo_ICILOC].[QTYADNOCST] - [dbo_ICILOC].[QTYSHNOCST] - [dbo_ICILOC].[QTYCOMMIT]) <= 0, 0, ([dbo_ICILOC].[QTYONHAND] + [dbo_ICILOC].[QTYRENOCST] + [dbo_ICILOC].[QTYADNOCST] - [dbo_ICILOC].[QTYSHNOCST] - [dbo_ICILOC].[QTYCOMMIT]) >= 0, ([dbo_ICILOC].[QTYONHAND] + [dbo_ICILOC].[QTYRENOCST] + [dbo_ICILOC].[QTYADNOCST] - [dbo_ICILOC].[QTYSHNOCST] - [dbo_ICILOC].[QTYCOMMIT])) AS avqty 
    ,switch(dbo_ICILOC.QTYONORDER IS NULL, 0, dbo_ICILOC.QTYONORDER >= 0, (([AESTUSA.QTYONORDER] + [dbo_ICILOC].[QTYONORDER]) + SUM(IIf(([dbo_ICILOC].[QTYONHAND] - [dbo_ICILOC].[QTYCOMMIT]) > 0, 0, ([dbo_ICILOC].[QTYONHAND] - [dbo_ICILOC].[QTYCOMMIT])))) AS qtyorder 

FROM QParts 
LEFT JOIN dbo_ICILOC ON QParts.PartsNumber = dbo_ICILOC.ITEMNO 
LEFT JOIN dbo_ICILOC AS AESTUSA ON QParts.PartsNumber = AESTUSA.ITEMNO 

WHERE 
    dbo_ICILOC.LOCATION = "UBN" 
    AND 
    AESTUSA.LOCATION = "UBCUST";

來源

2016-01-12 08:47:32 Gustav

您是否認爲在Jet Sql中「Group by」不是必需的？ –

_Group By_是可能的，但不是必需的。「DISTINCT」有效地強制在所有字段上進行分組。 – Gustav

MS Access SQL（Jet SQL）|語法錯誤（缺失的遺產）

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