How to clear/free SAP memory

Hi All,
How can i make sap memory free.
Actually i am doing a BDC program where i am generating personnel no through PA40.
My requrirement is to clear personnel no in each loop pass of the BDC transaction so
that a fresh personnel no gets generated automatically in each loop pass. Pls help me
resolving this issue.
Pls reply asap as it is very urgent.
Thanks,
Rupesh

Hey,
if you dont mind can you please explain me in detail what effect this will have.
i am attaching a snippet of my code, where i am performing call BDC.
FORM sub_bdc_sessions .
*> Local Constants
  DATA: l_ctumode LIKE ctu_params-dismode VALUE 'A',
         l_cupdate LIKE ctu_params-updmode VALUE 'S',
         l_tcode(4) TYPE c VALUE 'PA40',
         l_sdate(10) TYPE c,
         l_edate(10) TYPE c.
  LOOP AT i_itab INTO wa_itab.
**> change the start date format to mm/dd/yyyy
    CONCATENATE wa_itab-begda0(2) '/' wa_itab-begda3(2) '/'
     wa_itab-begda+6(4) INTO l_sdate.
**> change the start date format to mm/dd/yyyy
    CONCATENATE wa_itab-endda0(2) '/' wa_itab-endda3(2) '/'
     wa_itab-endda+6(4) INTO l_edate.
**> change the start date format to mm/dd/yyyy
    CONCATENATE wa_itab-gbdat0(2) '/' wa_itab-gbdat3(2) '/'
     wa_itab-gbdat+6(4) INTO wa_itab-gbdat.
    PERFORM bdc_dynpro      USING 'SAPMP50A' '2000'.
    PERFORM bdc_field       USING 'BDC_CURSOR'
                                  'RP50G-EINDA'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  '/00'.
    PERFORM bdc_field       USING 'RP50G-PERNR'
    PERFORM bdc_field       USING 'RP50G-EINDA' l_sdate.
    PERFORM bdc_dynpro      USING 'SAPMP50A' '2000'.
    PERFORM bdc_field       USING 'BDC_CURSOR'
                                  'T529T-MNTXT(12)'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  '=PICK'.
    PERFORM bdc_field       USING 'RP50G-EINDA' l_sdate.
    PERFORM bdc_field       USING 'RP50G-SELEC(12)'
                                  'X'.
    PERFORM bdc_dynpro      USING 'MP000000' '2000'.
    PERFORM bdc_field       USING 'BDC_CURSOR'
                                  'PSPAR-WERKS'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  '/00'.
    PERFORM bdc_field       USING 'P0000-BEGDA' l_sdate.
    PERFORM bdc_field       USING 'P0000-ENDDA' l_edate.
    PERFORM bdc_field       USING 'P0000-MASSN'
                                  'CA'.
    PERFORM bdc_field       USING 'P0000-MASSG' wa_itab-massg.
    PERFORM bdc_field       USING 'PSPAR-PLANS' wa_itab-plans.
    PERFORM bdc_field       USING 'PSPAR-WERKS' wa_itab-werks.
    PERFORM bdc_field       USING 'PSPAR-PERSG' wa_itab-persg.
    PERFORM bdc_field       USING 'PSPAR-PERSK' wa_itab-persk.
    PERFORM bdc_dynpro      USING 'MP000000' '2000'.
    PERFORM bdc_field       USING 'BDC_CURSOR'
                                  'PSPAR-PERNR'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  '=UPD'.
    PERFORM bdc_field       USING 'PSPAR-PERNR'
    PERFORM bdc_field       USING 'P0000-BEGDA' l_sdate.
    PERFORM bdc_field       USING 'P0000-ENDDA' l_edate.
    PERFORM bdc_field       USING 'P0000-MASSN'
                                  'CA'.
    PERFORM bdc_field       USING 'P0000-MASSG' wa_itab-massg.
    PERFORM bdc_field       USING 'PSPAR-PLANS' wa_itab-plans.
    PERFORM bdc_field       USING 'PSPAR-WERKS' wa_itab-werks.
    PERFORM bdc_field       USING 'PSPAR-PERSG' wa_itab-persg.
    PERFORM bdc_field       USING 'PSPAR-PERSK' wa_itab-persk.
    PERFORM bdc_dynpro      USING 'MP000100' '2000'.
    PERFORM bdc_field       USING 'BDC_CURSOR'
                                  'P0001-BTRTL'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  '/00'.
    PERFORM bdc_field       USING 'P0001-BEGDA' l_sdate.
    PERFORM bdc_field       USING 'P0001-ENDDA' l_edate.
    PERFORM bdc_field       USING 'P0001-BTRTL' wa_itab-btrtl.
    PERFORM bdc_field       USING 'P0001-ABKRS' wa_itab-abkrs.
    PERFORM bdc_field       USING 'P0001-PLANS' wa_itab-plans.
    PERFORM bdc_dynpro      USING 'MP000100' '2000'.
    PERFORM bdc_field       USING 'BDC_CURSOR'
                                  'P0001-BEGDA'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  '=UPD'.
    PERFORM bdc_field       USING 'P0001-BEGDA' l_sdate.
    PERFORM bdc_field       USING 'P0001-ENDDA' l_edate.
    PERFORM bdc_field       USING 'P0001-BTRTL' wa_itab-btrtl.
    PERFORM bdc_field       USING 'P0001-ABKRS' wa_itab-abkrs.
    PERFORM bdc_field       USING 'P0001-PLANS' wa_itab-plans.
    PERFORM bdc_field       USING 'P0001-VDSK1'
                                  '2001'.
    PERFORM bdc_dynpro      USING 'MP000200' '2025'.
    PERFORM bdc_field       USING 'BDC_CURSOR'
                                  'P0002-ANZKD'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  '/00'.
    PERFORM bdc_field       USING 'P0002-BEGDA' l_sdate.
    PERFORM bdc_field       USING 'P0002-ENDDA' l_edate.
    PERFORM bdc_field       USING 'Q0002-ANREX' wa_itab-anrex.
    PERFORM bdc_field       USING 'P0002-VORNA' wa_itab-vorna.
    PERFORM bdc_field       USING 'P0002-NACHN' wa_itab-nachn.
    PERFORM bdc_field       USING 'Q0002-GESC2' wa_itab-gesc2.
    PERFORM bdc_field       USING 'Q0002-GESC1'
                                  'X'.
    PERFORM bdc_field       USING 'P0002-GBDAT' wa_itab-gbdat.
    PERFORM bdc_field       USING 'P0002-SPRSL'
                                  'EN'.
    PERFORM bdc_field       USING 'P0002-NATIO' wa_itab-natio.
    PERFORM bdc_field       USING 'Q0002-FATXT' wa_itab-fatxt.
    PERFORM bdc_field       USING 'P0002-ANZKD' wa_itab-anzkd.
    PERFORM bdc_dynpro      USING 'MP000200' '2025'.
    PERFORM bdc_field       USING 'BDC_CURSOR'
                                  'P0002-BEGDA'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  '=UPD'.
    PERFORM bdc_field       USING 'P0002-BEGDA' wa_itab-gbdat.
    PERFORM bdc_field       USING 'P0002-ENDDA' l_edate.
    PERFORM bdc_field       USING 'Q0002-ANREX' wa_itab-anrex.
    PERFORM bdc_field       USING 'P0002-VORNA' wa_itab-vorna.
    PERFORM bdc_field       USING 'P0002-NACHN' wa_itab-nachn.
    PERFORM bdc_field       USING 'Q0002-GESC1' wa_itab-gesc2.
    PERFORM bdc_field       USING 'P0002-GBDAT' wa_itab-gbdat.
    PERFORM bdc_field       USING 'P0002-SPRSL'
                                  'EN'.
    PERFORM bdc_field       USING 'P0002-NATIO' wa_itab-natio.
    PERFORM bdc_field       USING 'Q0002-FATXT' wa_itab-fatxt.
    PERFORM bdc_dynpro      USING 'MP010500' '2000'.
    PERFORM bdc_field       USING 'BDC_CURSOR'
                                  'P0105-USRID'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  'UPD'.
    PERFORM bdc_field       USING 'P0105-BEGDA' l_sdate.
    PERFORM bdc_field       USING 'P0105-ENDDA' l_edate.
    PERFORM bdc_field       USING 'P0105-USRID' wa_itab-usrid.
    PERFORM bdc_dynpro      USING 'SAPMP50A' '2000'.
    PERFORM bdc_field       USING 'BDC_OKCODE'
                                  '/EBCK'.
    PERFORM bdc_field       USING 'BDC_CURSOR'
                                  'RP50G-PERNR'.
  REFRESH i_bdcmsgcoll.
    CALL TRANSACTION l_tcode USING i_bdcitab
                     MODE   l_ctumode
                     UPDATE l_cupdate
                     MESSAGES INTO i_bdcmsgcoll.
*>  refresh the bdc data tab
    REFRESH i_bdcitab.

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    ☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
    Paste into the Terminal window by pressing command-V. You'll be prompted for your login password, which won't be displayed when you type it. Type carefully and then press return. You may get a one-time warning to be careful. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator. Ignore any other messages that appear in the Terminal window.
    The application window will open, eventually showing all files in all folders, sorted by size. It may take a few minutes for the app to finish scanning.
    I don't recommend that you make a habit of doing this. Don't delete anything as root. If something needs to be deleted, make sure you know what it is and how it got there, and then delete it by other, safer, means. When in doubt, leave it alone or ask for guidance.
    When you're done with the app, quit it and also quit Terminal.

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