有没有人有如何连接 3 个表的示例，我有以下语句，但缺少 a(语法错误“运算符错误”)
da = New OleDbDataAdapter("SELECT [S].[Scheduled Vege], [V].[Description],
[DS].[Task], [DS].[Task Date], [DS].[Completed] FROM [Scheduled] AS S
INNER JOIN [Date Schedules] AS DS ON [S].[SchedID] = [DS].[SchedID]
INNER JOIN [Vegetables Descriptions] AS V ON [V].[Task] = [DS].[Task]
WHERE [DS].[TaskNumber] >= " & aFromDate & " AND [DS].[TaskNumber] <= " & aToDate & "
AND [DS].[Completed] = '" & aCompleted & "' ", conn)
谢谢
最佳答案
发现问题了，因为是access数据库，第一个from语句和INNER JOIN需要放在括号里，如下所示。
da = New OleDbDataAdapter("SELECT [S].[Scheduled Vege], [V].[Description],
[DS].[Task], [DS].[Task Date], [DS].[Completed] FROM ([Scheduled] AS S
INNER JOIN [Date Schedules] AS DS ON [S].[SchedID] = [DS].[SchedID])
INNER JOIN [Vegetables Descriptions] AS V ON [V].[Task] = [DS].[Task]
WHERE [DS].[TaskNumber] >= " & aFromDate & " AND [DS].[TaskNumber] <= " & aToDate & "
AND [DS].[Completed] = '" & aCompleted & "' ", conn)
关于vb.net - Ms-Access:连接 3 个表，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/901935/