创建联合查询的正确 MS Access SQL 语法是什么

Question

Microsoft 文档指出：

CREATE VIEW view [(field1[, field2[, ...]])] AS selectstatement

并列出了一些规定。我正在尝试使用ADODB 使用CREATE VIEW 语句创建联合查询。我可以在 Access (2013) 中运行并保存联合本身（它显示它已保存为带有两个小互锁圆圈图标的联合查询）。但是 Microsoft.ACE.OLEDB.12.0 引擎抱怨Unions 不允许在子查询中使用，或者在VIEWS 中只允许简单的SELECT 查询。我需要使用DAO 还是有不同的语法？我的创建视图语句是：

uString = "CREATE VIEW vwSpendingTotals (Spending, Name) as SELECT Spending, Name FROM " & _
" (SELECT  Sum( tblA.Amount) as Spending, 'Auto' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_AUTO as tblA on gl.Trans_ID = tblA.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1)  Union " & _
" SELECT  Sum( tblH.Amount) as Spending, 'Household' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_Household as tblH on gl.Trans_ID = tblH.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1) union " & _
" SELECT  Sum( tblL.Amount) as Spending, 'Living' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_Living as tblL on gl.Trans_ID = tblL.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1)  union " & _
" SELECT  Sum( tblM.Amount) as Spending, 'Medical' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_Medical as tblM on gl.Trans_ID = tblM.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1) union " & _
" SELECT  Sum( tblP.Amount) as Spending, 'Personal' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_Personal as tblP on gl.Trans_ID = tblP.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1) union " & _
" SELECT  Sum( tblU.Amount) as Spending, 'Utilities' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_Utilities as tblU on gl.Trans_ID = tblU.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1)) order by Name"
objConnection.Execute uString

objConnection 已在脚本中较早地实例化。 是否应该更新 Microsoft 文档以反映 Jet 12 引擎返回的错误，还是我在找错树？

提前致谢， 哈罗德

Answer 1

您是否在子查询之后使用别名运行它：

uString = "CREATE VIEW vwSpendingTotals (Spending, Name) as SELECT Spending, Name FROM " & _
" (SELECT  Sum( tblA.Amount) as Spending, 'Auto' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_AUTO as tblA on gl.Trans_ID = tblA.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1)  Union " & _
" SELECT  Sum( tblH.Amount) as Spending, 'Household' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_Household as tblH on gl.Trans_ID = tblH.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1) union " & _
" SELECT  Sum( tblL.Amount) as Spending, 'Living' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_Living as tblL on gl.Trans_ID = tblL.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1)  union " & _
" SELECT  Sum( tblM.Amount) as Spending, 'Medical' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_Medical as tblM on gl.Trans_ID = tblM.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1) union " & _
" SELECT  Sum( tblP.Amount) as Spending, 'Personal' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_Personal as tblP on gl.Trans_ID = tblP.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1) union " & _
" SELECT  Sum( tblU.Amount) as Spending, 'Utilities' as Name from tblGeneral_Ledger  gl " & _
" inner join tblAccount_Utilities as tblU on gl.Trans_ID = tblU.Trans_ID " & _
" where gl.Debit_Credit < 0 AND Trans_Date > DateSerial(Year(Now()),1,1))a order by Name"
objConnection.Execute uString