MS-Access Query中的語法錯誤（缺少運算符）

Question

以下查詢給出了"(missing operator)"語法錯誤。 所需的輸出是來自表[dbo_tbl*]和視圖[vw_*]的數據的組合。 我使用過的所有密鑰都存在。 有任何想法嗎？

SELECT dbo_tbl_BOD.fpartno AS PartNumber,
      dbo_tbl_BOD.frev AS RevisionIssue,
      vw_DOCSwType.DocID,
      vw_DRHRelfilter.Rev,
      vw_DOCSwType.DocTypeDesc,
      vw_DOCSwType.DocDesc,
      vw_DOCSwType.DwgNoLegacy,
      vw_DOCSwType.FileLocationOld,
      vw_DRHRelfilter.DateCreated,
      vw_DOCSwType.CreatedBy,
      vw_DRHRelfilter.Rel,
      vw_DRHRelfilter.RelLink
FROM dbo_tbl_BOD
LEFT JOIN vw_DRHRelfilter
      ON ((dbo_tbl_BOD.DocID=vw_DRHRelfilter.DocID)
     AND (dbo_tbl_BOD.frev=vw_DRHRelfilter.Rev))
 LEFT JOIN vw_DOCSwType
      ON (dbo_tbl_BOD.DocID=vw_DOCSwType.DocID)
ORDER BY PartNumber;

Answer 1

使用Access，每個連接都需要括號，例如：

SELECT dbo_tbl_BOD.fpartno AS PartNumber,
dbo_tbl_BOD.frev AS RevisionIssue,
vw_DOCSwType.DocID,
vw_DRHRelfilter.Rev,
vw_DOCSwType.DocTypeDesc,
vw_DOCSwType.DocDesc,
vw_DOCSwType.DwgNoLegacy,
vw_DOCSwType.FileLocationOld,
vw_DRHRelfilter.DateCreated,
vw_DOCSwType.CreatedBy,
vw_DRHRelfilter.Rel,
vw_DRHRelfilter.RelLink
FROM (dbo_tbl_BOD
LEFT JOIN vw_DRHRelfilter
ON dbo_tbl_BOD.DocID=vw_DRHRelfilter.DocID
AND dbo_tbl_BOD.frev=vw_DRHRelfilter.Rev)
LEFT JOIN
vw_DOCSwType
ON dbo_tbl_BOD.DocID=vw_DOCSwType.DocID
ORDER BY PartNumber;

如果您有MS Access的副本，則可以使用查詢設計窗口輕松查看所需的括號以構建聯接。

您可以使用VBA檢查字段類型，例如：

Dim rs As DAO.Recordset
Dim fld As DAO.Field

Set rs = CurrentDb.OpenRecordset("query1")
For Each fld In rs.Fields
    Debug.Print fld.SourceField, fld.SourceTable, _
        DLookup("SQLName", "DataTypeEnum", "DataValue=" & fld.Type)
Next

表DataTypeEnum包含fld.type返回的數值的文本描述。

DataValue  SQLName
1   Boolean
2   Byte
3   Integer
4   Long
5   Currency
6   Single
7   Double
8   Date
9   Binary
10  Text
11  LongBinary
12  Memo
15  GUID
16  BigInt
17  VarBinary
18  Char
19  Numeric
20  Decimal
21  Float
22  Time
23  TimeStamp