我有下面的代码
SELECT tA.FieldName As [Field Name],
COALESCE(tO_A.[desc], tO_B.[desc], tO_C.Name, tA.OldVAlue) AS [Old Value],
COALESCE(tN_A.[desc], tN_B.[desc], tN_C.Name, tA.NewValue) AS [New Value],
U.UserName AS [User Name],
CONVERT(varchar, tA.ChangeDate) AS [Change Date]
FROM D tA
JOIN
[DRTS].[dbo].[User] U
ON tA.UserID = U.UserID
LEFT JOIN
A tO_A
on tA.FieldName = 'AID'
AND tA.oldValue = CONVERT(VARCHAR, tO_A.ID)
LEFT JOIN
A tN_A
on tA.FieldName = 'AID'
AND tA.newValue = CONVERT(VARCHAR, tN_A.ID)
LEFT JOIN
B tO_B
on tA.FieldName = 'BID'
AND tA.oldValue = CONVERT(VARCHAR, tO_B.ID)
LEFT JOIN
B tN_B
on tA.FieldName = 'BID'
AND tA.newValue = CONVERT(VARCHAR, tN_B.ID)
LEFT JOIN
C tO_C
on tA.FieldName = 'CID'
AND tA.oldValue = tO_C.Name
LEFT JOIN
C tN_C
on tA.FieldName = 'CID'
AND tA.newValue = tN_C.Name
WHERE U.Fullname = @SearchTerm
ORDER BY tA.ChangeDate
当运行代码时，我在添加表c的两个连接后，将错误粘贴在标题中。我认为这可能与我使用SQL Server 2008的事实有关，并在2005年的机器上恢复了这个db的副本。
