Re: Join statement

SELECT SINGLE CUOBJ_BM FROM mcha INTO l_i_mcha-CUOBJ_BM

   WHERE matnr = <fs_output>-matnr AND werks = <fs_output>-werks AND charg = <fs_output>-charg.

   IF sy-subrc = 0.

     SELECT SINGLE ATWRT FROM ausp INTO l_i_ausp-ATWRT

       WHERE CUOBJ_BM = l_i_mcha-CUOBJ_BM AND ATINN = 'PWCS_PART_SERIAL_NUMBER'.

       IF sy-subrc = 0.

         <fs_output>-ausp = l_i_ausp-ATWRT.

       ENDIF.

   ENDIF. 

Can I use this?