Добавление поля в таблицу (ADOX)

По материалам: https://www.everythingaccess.com/tutorials.asp?ID=ADOX-programming-examples#ShowAllTables

Function ModifyTableAdox()
    'Purpose:   Show how to add fields to a table, and delete them using ADOX.
    Dim cat As New ADOX.Catalog
    Dim tbl As ADOX.Table
    Dim col As New ADOX.Column
    
    'Initialize
    cat.ActiveConnection = CurrentProject.Connection
    Set tbl = cat.Tables("tblAdoxContractor")
    
    'Add a new column
    With col
        .Name = "MyDecimal"
        .Type = adNumeric   'Decimal type.
        .Precision = 28     '28 digits.
        .NumericScale = 8   '8 decimal places.
    End With
    tbl.Columns.Append col
    Set col = Nothing
    Debug.Print "Column added."
    
    'Delete a column.
    tbl.Columns.Delete "MyDecimal"
    Debug.Print "Column deleted."
    
    'Clean up
    Set col = Nothing
    Set tbl = Nothing
    Set cat = Nothing
End Function