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The information below is based on an article by Juan Soto :
Using SQL Server Views with Access: Index needed for editing data

SQL Server views are one of the best tools a Microsoft Access developer can use to limit exposure to data and improve Access performance.

Unfortunately, you can’t modify data in a view unless it has a unique index.
Read on if that is the case for you . . .

You can create indexed views in SQL Server, this article applies to non-indexed views.

After you have linked your SQL view to your Access application, run the following procedure in your code to create the index:


Public Sub CreateIndexonView(strIndexName As String, strViewName As String, strFields As String)

Dim strSQL As String
strSQL = "Create Index " & strIndexName & " On " & strViewName & "(" & strFields & ")"
CurrentDb.Execute strSQL, dbFailOnError

End Sub

Example usage:

CreateIndexonView “IDX_OrderID”, “vw_CustomerExpiredOrders”, “OrderID”

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