select distinct substring(name,1,1) from stamps ,color_master,np_master where color_master.color_code=stamps.color_code and color_master.color='Purple' and np_master.np_code=stamps.np_code and np_master.np='P' and stamps.serial_no='1030' order by substring(name,1,1)
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Color >> Purple >> Serial >> Currency >> P >> Serial Number >> 1030 >> Alpha >>