Adding a Unique Index Based on Two Fields to an Existing Table : Index « Access « VBA / Excel / Access / Word






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Adding a Unique Index Based on Two Fields to an Existing Table

 
Sub AddMulti_UniqueIndex() 
    Dim conn As ADODB.Connection 
    Dim strTable As String 
    Dim strCol As String 

    On Error GoTo ErrorHandler 
    Set conn = CurrentProject.Connection 

    strTable = "myTable" 
    strCol = "Id, Name" 

    conn.Execute "ALTER TABLE " & strTable & " ADD CONSTRAINT multiIdx UNIQUE(" & strCol & ");" 
ExitHere: 
    conn.Close 
    Set conn = Nothing 
    Exit Sub 
ErrorHandler: 
    Debug.Print Err.Number & ":" & Err.Description 
    Resume ExitHere 
End Sub








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