Short dump-internal table size issue

Question

Hi,
I get the following message in the short dump analysis for a report.
No storage space available for extending table "IT_920".
You attempted to extend an internal table, but the required space was not available.
Error Analysis:
The internal table "IT_920" could not be enlarged further.             
To extend the internal table, 9696 bytes of storage space was          
needed, but none was available. At this point, the table "IT_920" has  
1008240 entries.
Its an old report and I saw the internal table declaration using the "OCCURS" clause in the internal table declaration.
begin of itab occurs 100.
end of itab.
I tried the option of changing to "OCCURS 0", still issue persists.
Any help would be highly appretiated
CM

Answer 1

Hello CMV,
This is basic problem with SAP internal tables. For every internal table memory is alocated ( Max..256K)...once you cross the memory size/limit of the internal table it resuls in short dump.
Only way to overcome this problem is handle limited number of records at a time.. 
Please refer following sample code which will help you to avoid short dump while processing large number of records....
  SORT TAB_RESULT.
  DESCRIBE TABLE TAB_RESULT LINES W_RECORDS.
  W_LOW      = 1.
  W_UP       = 1000.
*Spliting the records from tab_result1 by pakage of 1000 at a time
*to avoid short dump in case of more records
  WHILE W_LOW <= W_RECORDS.
    R_PKUNWE-SIGN = 'I'.
    R_PKUNWE-OPTION = 'EQ'.
    R_WERKS-SIGN = 'I'.
    R_WERKS-OPTION = 'EQ'.
    LOOP AT TAB_RESULT FROM W_LOW TO W_UP.
      MOVE TAB_RESULT-PKUNWE TO R_PKUNWE-LOW.
      MOVE TAB_RESULT-WERKS  TO  R_WERKS-LOW.
      APPEND R_PKUNWE.
      APPEND R_WERKS.
    ENDLOOP.
*fetch sold to party
     SELECT KUNNR NAME1
       FROM KNA1
       APPENDING CORRESPONDING FIELDS OF TABLE TAB_KNA1
       WHERE KUNNR IN R_PKUNWE.
*fetch plant
  SELECT WERKS NAME1
         FROM T001W
         APPENDING CORRESPONDING FIELDS OF TABLE TAB_T001W
         WHERE WERKS IN R_WERKS.
   REFRESH: R_PKUNWE,
            R_WERKS.
    W_LOW = W_LOW + 1000.
    W_UP  = W_UP  + 1000.
  ENDWHILE.
Hope this will help you to solve problem.
Cheers,
Nilesh