Re: how to avoid select inside loop.. performance tuning it takes more time.. please suggest me

thanks Ranjana, in this case I think no need to use read statement can you please check and let me know

LOOP AT T_VBAK INTO W_VBAK.

    READ TABLE T_VBAP INTO W_VBAP WITH KEY

                    VBELN = W_VBAK-VBELN

                    WERKS = ' '.

    IF SY-SUBRC = 0.

*      PERFORM POST_SALES_ORDER.

      SELECT * FROM VBAP INTO TABLE LT_VBAP

           WHERE VBELN EQ W_VBAK-VBELN

             AND werks = ''."FNY4918 -21/06/2013



      SELECT * FROM VBPA INTO TABLE LT_VBPA

               WHERE VBELN EQ W_VBAK-VBELN.



      SELECT SINGLE * FROM YOTCD_E017_STATU INTO YOTCD_E017_STATU

       WHERE AUART EQ W_VBAK-AUART AND

             VKORG EQ W_VBAK-VKORG AND

             VTWEG EQ W_VBAK-VTWEG.



      IF SY-SUBRC EQ 0.

*Read Ship-to-party

        READ TABLE LT_VBPA WITH KEY VBELN = W_VBAK-VBELN

                                    POSNR = C_POSNR

                                    PARVW = C_WE.



        CALL FUNCTION 'YOTCE_DERIVE_SO_ITEM_PLANT'

          EXPORTING

            iv_kunnr        = LT_VBPA-KUNNR

            iv_vkorg        = W_VBAK-VKORG

            IV_VTWEG        = W_VBAK-VTWEG

            iv_spart        = W_VBAK-SPART

          IMPORTING

            ev_werks        = LV_WERKS_D

            ev_vsart        = LV_VSART_D

            ev_traty        = LV_TRATY_D

            ev_userid       = LV_USERID_D

            ev_kcnovr       = LV_KCNOVR_D

            ev_vtweg        = LV_VTWEG_D

            ev_ship_cond    = LV_SHIP_COND

          TABLES

            it_zvbap        = LT_VBAP

            it_ztline       = LT_ZTLINE

          EXCEPTIONS

            PLANT_NOT_FOUND = 1

            OTHERS          = 2.