Hello Suhale,
Write like below.
TYPES : BEGIN of strt.
Declare the fields werks budat qualf urcod arbpl katalogart urgrp urcod versio iserh.
END OF strt.
DATA: itab TYPE TABLE OF strt.
SELECT werks budat qualf urcod arbpl katalogart urgrp urcod versio iserh
INTO TABLE itab
FROM zctsi_pw
WHERE werks IN so_werk
AND budat IN so_budat
AND arbpl IN so_arbpl
AND aufnr IN so_aufnr
AND urgrp IN so_urgrp
AND urcod IN so_urcod.
Don't use table alias, it can be used only if you are using the JOINS.