主题：查询表的字段名字该怎么写

dim sql as string="select   a.*,b.*   from   table1   a,table2   b   where   a.id=b.id  "

With Tables(window_table)
   .Fill(sql,"c2",True)  
   .SetColVisibleWidth("a.id|78")  '这个地方怎么写ID，a.id? table.id? id
   .Cols("detail_id").visible=False  '这个地方怎么写ID，a.id? table.id? id
End With

With DataTables(window_table)
    .DataCols("id").Caption = "标记"  '这个地方怎么写ID，a.id? table.id? id
    .MultiRowHeader = False
    .BuildHeader()
End With