Error Message - No storage space available for extending an internal table

Question

i have written this code where i think there is a performance issue as well.
Error - You have attempted to extend an internal table but the required space was not available.
  IF GT_OUTTAB IS NOT INITIAL.
    SELECT  ZRMVIEW~ARBPL
            ZRMVIEW~GSTRS
            ZRMVIEW~GSUZS
            ZRMVIEW~GLUZS
            ZRMVIEW~GLTRS
            ZRMVIEW~VERID
            ZCRHDV1~KTEXT1
            INNER JOIN CRHD_V1 AS ZCRHDV1
            ON ZRMVIEWMANDT = ZCRHDV1MANDT
            AND ZRMVIEWWERKS1 = ZCRHDV1WERKS
           FOR ALL ENTRIES IN  GT_OUTTAB
          WHERE AUFNR = GT_OUTTAB-BID.
    ENDSELECT.
    ENDIF.
    IF SY-SUBRC EQ 0.
      LOOP AT GT_OUTTAB .
        READ TABLE GT_PRV_OUTAB WITH KEY WERK = GT_OUTTAB-WERK.
        MOVE-CORRESPONDING GT_PRV_OUTAB TO GT_OUTTAB.
        APPEND GT_OUTTAB.
      ENDLOOP.
    ENDIF.
GT_OUTTAB contains the structure for the table COCH.
And to read this select statement it takes lot of time.
please provide me proper inputs for the same.
thanks,

Answer 1

Hi Shanky S
LOOP AT GT_OUTTAB .
READ TABLE GT_PRV_OUTAB WITH KEY WERK = GT_OUTTAB-WERK.
MOVE-CORRESPONDING GT_PRV_OUTAB TO GT_OUTTAB.
APPEND GT_OUTTAB.
ENDLOOP.
You are looping at gt_outtab and appending it within the same loop.  Since everytime a new entry is appended into the gt_outtab int table and thus it'll lead to an infinite loop.
Try something like by creating an itab of similar structure as gt_outtab:
LOOP AT gt_outtab into wa_outtab (work area).
  MOVE-CORRESPONDING wa_outtab into wa_outtab1.
  APPEND wa_outtab1 to gt_outtab1.
ENDLOOP.
LOOP AT GT_OUTTAB .
  READ TABLE GT_PRV_OUTAB WITH KEY WERK = GT_OUTTAB-WERK.
  MOVE-CORRESPONDING GT_PRV_OUTAB TO GT_OUTTAB1.
  APPEND GT_OUTTAB1.
ENDLOOP.
Now use gt_outtab1 in your code going furthur.
Hope this helps.
Harsh