Updating an existing data  in the table...urgent

Hi All,
I am updating the existing records in the table.My CO piece of code is as below:
if(!vo.isExecuted() && !vo.isPreparedForExecution())
vo.executeQuery();
Row requestRow = vo.getCurrentRow();
requestRow.setAttribute("CustomerName", custName);
requestRow.setAttribute("CustomerNumber", custNumber);
but I am getting Null pointer exception at line:
vo.getCurrentRow();
Its very urgent.
Please help me on this.
Akshata
Edited by: Akshata on Apr 25, 2012 3:29 AM

Try below
if(!vo.isExecuted() && !vo.isPreparedForExecution())
vo.executeQuery();
Row requestRow = vo.first(); //If it also returns null, that means the VO doen't have any rows.
requestRow.setAttribute("CustomerName", custName);
requestRow.setAttribute("CustomerNumber", custNumber);
Regards,
Peddi.

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    im currently developing a stock aging report,
    i have completed one program but it do not allow me to excutes the program althought the syntax is correct.
    i would to get some ideas from you, regarding how to extract the datas from the tables?
    my selction screen will be, mat number, date, and gl account.
    and the out put datas are, mbew-matnr, makt-maktx, mbew-lbkum, mara_meins, mbew-salk3,and the consumptions for the past 12months and the values for it.
    can u plz guide me with this,
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    here is the total code the i do
    REPORT  ZSTK_AGING_REP2.
    *TABLES
    TABLES: mseg,
            mara,
            makt,
            SKAT,
            SKA1,
            MARV,
            T001,
            T030,
            T149D,
            AM07M,
            MCMSEG,
            T001K,
            T001W,
            T134M,
            vbak,
            mbew,
    mcon, rmcb0, marc, t024w,  mvke, v134w, t438a, propf, maprf, t000, t024e
    , tvko.
    DATA: BEGIN OF ta_material OCCURS 2,
           werks LIKE mard-werks,
           lgort LIKE mard-lgort,
           matnr LIKE mard-matnr,
           labst LIKE mard-labst,
           umlme LIKE mard-umlme,
           insme LIKE mard-insme,
           einme LIKE mard-einme,
           speme LIKE mard-speme,
           retme LIKE mard-retme,
           verpr LIKE mbew-verpr,
           maktx LIKE makt-maktx,
           meins LIKE mara-meins,
          bukrs LIKE t001-bukrs,
          konto LIKE t030-konts,
          butxt LIKE t001-butxt,
          txt50 LIKE skat-txt50,
          MABTR LIKE MCMSEG-DMBTR,
          SKBTR LIKE MCMSEG-DMBTR,
          WAERS LIKE T001-WAERS,
          WAER2 LIKE T001-WAERS,
          BWKEY LIKE MBEW-BWKEY,
          LBKUM LIKE MBEW-LBKUM,
         MEINS LIKE MARA-MEINS,
             SALK3 LIKE MBEW-SALK3,
             WAERS1 LIKE T001-WAERS,
             BUKRS1 LIKE T001-BUKRS,
             KONTO1 LIKE T030-KONTS,
            lbkum LIKE mbew-lbkum,
              erdat LIKE vbak-erdat,
          END OF ta_material.
    DATA: BEGIN OF ta_mseg OCCURS 2,
            mblnr LIKE mseg-mblnr,
    *->Begin of KL02+ -
            mjahr like mseg-mjahr,
            zeile like mseg-zeile,
    *->End of KL02+ -
            meins LIKE mseg-meins,
            menge LIKE mseg-menge,
            werks LIKE mseg-werks,
            lgort LIKE mseg-lgort,
            matnr LIKE mseg-matnr,
            budat LIKE mkpf-budat,
            saknr LIKE SKA1-SAKNR,
          END OF ta_mseg.
    single recs based on MATNR
    DATA: BEGIN OF i_matnr OCCURS 0,
            werks LIKE mard-werks,
            lgort LIKE mard-lgort,
            matnr LIKE mard-matnr,
            maktx LIKE makt-maktx,
            mblnr LIKE mseg-mblnr,
            verpr LIKE mbew-verpr,
            labst LIKE mard-labst,                    "Valuated stock with
    *unrestricted use
            umlme LIKE mard-umlme,                    "Stock in transfer
    *(from one storage location to another)
            insme LIKE mard-insme,                    "Stock in quality
    *inspection
            einme LIKE mard-einme,                    "Total Stock of All
    *Restricted Batches
            speme LIKE mard-speme,                    "Blocked stock
            retme LIKE mard-retme,                    "Blocked Stock Returns
            meins LIKE mara-meins,                    "base unit
          bukrs LIKE t001-bukrs,
          konto LIKE t030-konts,
          butxt LIKE t001-butxt,
          txt50 LIKE skat-txt50,
          MABTR LIKE MCMSEG-DMBTR,
          SKBTR LIKE MCMSEG-DMBTR,
          WAERS LIKE T001-WAERS,
          WAER2 LIKE T001-WAERS,
          BWKEY LIKE MBEW-BWKEY,
          LBKUM LIKE MBEW-LBKUM,
         MEINS LIKE MARA-MEINS,
             SALK3 LIKE MBEW-SALK3,
             WAERS1 LIKE T001-WAERS,
             BUKRS1 LIKE T001-BUKRS,
             KONTO1 LIKE T030-KONTS,
            lbkum LIKE mbew-lbkum,
           END OF i_matnr.
    recs based on MBLNR
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            mblnr LIKE mseg-mblnr,
            werks LIKE mseg-werks,
            lgort LIKE mseg-lgort,
            matnr LIKE mseg-matnr,
            menge LIKE mseg-menge,
            meint LIKE mseg-meins,
            budat LIKE mkpf-budat,
         bukrs LIKE t001-bukrs,
         konts LIKE t030-konts,
         butxt LIKE t001-butxt,
         txt50 LIKE skat-txt50,
         MABTR LIKE MCMSEG-DMBTR,
         SKBTR LIKE MCMSEG-DMBTR,
         WAERS LIKE T001-WAERS,
         WAER2 LIKE T001-WAERS,
         BWKEY LIKE MBEW-BWKEY,
          LBKUM LIKE MBEW-LBKUM,
         MEINS LIKE MARA-MEINS,
             SALK3 LIKE MBEW-SALK3,
             WAERS1 LIKE T001-WAERS,
             BUKRS1 LIKE T001-BUKRS,
             KONTO1 LIKE T030-KONTS,
           END OF i_mblnr.
    TYPES: BEGIN OF t_mat,
            lgort LIKE mseg-lgort,
            werks LIKE mseg-werks,
            matnr LIKE mseg-matnr,
            mblnr LIKE mseg-mblnr,
            maktx LIKE makt-maktx,
            meins LIKE mara-meins,
    meng0 LIKE mbew-lbkum,
    value0 LIKE mbew-salk3,
           meng0  LIKE mard-labst,                   "0 to 10 days
           value0 LIKE mseg-dmbtr,
           meng1  LIKE mard-labst,                   "11 to 30 days
           value1 LIKE mseg-dmbtr,
           meng2 LIKE mard-labst,                   "31 to 60 days
           value2 LIKE mseg-dmbtr,
           meng3 LIKE mard-labst,                   "61-90
           value3 LIKE mseg-dmbtr,
           meng4 LIKE mard-labst,                   "90 days onwards
           value4 LIKE mseg-dmbtr,
           END OF t_mat.
    DATA: i_mat2 TYPE t_mat OCCURS 0 WITH HEADER LINE.
    TYPES: BEGIN OF t_mat2,
            lgort LIKE mard-lgort,                    " storage location
            cnt0(5),
            cnt1(5),
            cnt2(5),
            cnt3(5),
            cnt4(5),
       meng0 LIKE mbew-lbkum,
    value0 LIKE mbew-salk3,
           meng0  LIKE mard-labst,                   "0 to 10 days
           value0 LIKE mseg-dmbtr,
           meng1  LIKE mard-labst,                   "11 to 30 days
           value1 LIKE mseg-dmbtr,
           meng2 LIKE mard-labst,                   "31 to 60 days
           value2 LIKE mseg-dmbtr,
           meng3 LIKE mard-labst,                   "61-90
           value3 LIKE mseg-dmbtr,
           meng4 LIKE mard-labst,                   "90 days onwards
           value4 LIKE mseg-dmbtr,
           END OF t_mat2.
    DATA: i_matsum TYPE t_mat2 OCCURS 0 WITH HEADER LINE.
    DATA:  w_mengb TYPE mbew-lbkum,
           w_workqyt TYPE mbew-lbkum,
           w_index TYPE sy-tabix,
    *DATA: w_mengb TYPE mard-labst,     "tmp Balance qty
         w_workqty TYPE mard-labst,   "Work qty
         w_index TYPE sy-tabix,
          w_days(5)  TYPE n,           "duration difference (days)
          w_mths(5)  TYPE n,           "duration difference (mths)
          w_dat1 TYPE sy-datum,        "date
          w_dat2 TYPE sy-datum,        "today's date
          w_detl(1) TYPE c,
          w_summ(1) TYPE c,
          w_denom TYPE i,
          w_numer TYPE i,
          w_conv TYPE i,
          w_ttlcnt TYPE i,
          w_cnt TYPE i,
          v_topofpage(1),
         w_meng LIKE mard-labst,
           w_meng LIKE mbew-lbkum,
    *sapscript values
          w_title(20) TYPE c.              "Summary / Detail Report
    DATA: lv_peinh LIKE mbew-peinh,  "Price Unit
          lv_verpr LIKE mbew-verpr.  "Moving Price
    proram comes here
    SELECTION-SCREEN BEGIN OF BLOCK blk1 WITH FRAME TITLE text-001.
    SELECT-OPTIONS: s_werks FOR mseg-werks,
                    s_lgort FOR mseg-lgort,
                    s_matnr FOR mara-matnr,
                    s_saknr FOR ska1-saknr,
                    S_ERDAT FOR VBAK-ERDAT.
    PARAMETERS: pck_detl RADIOBUTTON GROUP rep1,
                pck_summ RADIOBUTTON GROUP rep1,
                pck_dtsm RADIOBUTTON GROUP rep1 DEFAULT 'X'.
    SELECTION-SCREEN END OF BLOCK blk1.
    top of the page
      TOP-OF-PAGE.
      PERFORM  f_top_of_page.
      FORM f_top_of_page .
      IF v_topofpage = 'D'.
    *-->Report header for detail report
        WRITE:/2 'Printed By :', sy-uname,
               80 'Stock Aging Report - Detail',
               180 'Printed on:', sy-datum, sy-timlo,
               220 'Page:', sy-pagno.
        WRITE:/,/,/.
        WRITE:/2 'Storage',
               10 'Matl ID',
               22 'Matl Description',
               61 'UOM',
               78 '<--=<QTY ON THIS DATE -->',
              78 '<-- =< 10 days -->',
              112 '<--11 to 30 days -->',
              148 '<--31 to 60 days -->',
              181 '<--61 to 90 days -->',
              216 '<-- > 90 days -->',
               /2 'Location',
               76 'Qty',
               92 'Value'.
              112 'Qty',
              128 'Value',
              148 'Qty',
              164 'Value',
              181 'Qty',
              195 'Value',
              216 'Qty',
              231 'Value'.
        WRITE:/2 sy-uline(235).
      ELSE.
    *-->Report header for Summary report
        WRITE:/2 'Printed By :', sy-uname,
               80 'Stock Aging Report - Summary',
               180 'Printed on:', sy-datum, sy-timlo,
               220 'Page:', sy-pagno.
        WRITE:/,/,/.
        WRITE:/2 'Storage',
               10 'Matl ID',
               22 'Matl Description',
               61 'UOM',
               78 '<--< QTY ON THIS DATE -->',
              78 '<-- < 10 days -->',
              112 '<--11 to 30 days -->',
              148 '<--31 to 60 days -->',
              181 '<--61 to 90 days -->',
              216 '<-- > 90 days -->',
               /2 'Location',
               76 'Qty',
               92 'Value'.
              112 'Qty',
              128 'Value',
              148 'Qty',
              164 'Value',
              181 'Qty',
              195 'Value',
              216 'Qty',
              231 'Value'.
        WRITE:/2 sy-uline(235).
      ENDIF.
    ENDFORM.                    " f_top_of_page
    *start-of-selection
    *PERFOM f_data_selection.
    FORM f_data_selection.
      SELECT a~werks
             a~lgort
             a~matnr
            a~saknr
            a~lbkum
            a~erdat
            a~labst
             a~umlme
             a~insme
             a~einme
             a~speme
             a~retme
           b~verpr    "this field no long been used
             c~maktx
             d~meins
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             FROM mard AS a
             INNER JOIN makt AS c ON amatnr = cmatnr
             INNER JOIN mara AS d ON amatnr = dmatnr
             WHERE a~matnr IN s_matnr
               AND a~werks IN s_werks
               AND a~lgort IN s_lgort
              AND a~saknr IN s_saknr
              AND a~erdat IN s_erdat
               AND c~spras = 'EN'.
    *--> SC01 - End  of Insertion **
    *-->Select material documents
      SELECT a~mblnr
            a~mjahr
            a~zeile
            a~meins
            a~menge
            a~werks
            a~lgort
            a~matnr
            b~budat
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      FROM mseg AS a INNER JOIN mkpf AS b
      ON amblnr = bmblnr
      AND amjahr = bmjahr
      FOR ALL ENTRIES IN ta_material
      WHERE matnr = ta_material-matnr
      AND a~werks = ta_material-werks
      AND a~lgort = ta_material-lgort
      AND algort NE aumlgo
      AND a~shkzg = 'S'
      AND a~smbln EQ space
      AND a~smblp EQ space.
    *--> SC03 - Start of Insertion **
    If MBLNR exist in MSEG-SMBLN and this
    record's SHKZG = 'H'. Remove it from the table.
    This is becuase this particular record has already been reverse.
      LOOP AT ta_mseg.
        SELECT SINGLE *
                 FROM mseg
                WHERE smbln = ta_mseg-mblnr
    *->Begin of KL02+ -
                  and SMBLP = ta_mseg-zeile.
                 AND shkzg = 'H'.  "return.           " KL02-
    *->End of KL02+ -
        IF sy-subrc = 0.
          DELETE ta_mseg.
        ENDIF.
      ENDLOOP.
    *--> SC03 - Enf   of Insertion **
    ENDFORM.                    " f_data_selection
    *IMPORTANT , NEED TO CHECK LATER
    FORM f_data_preparation.
    *-->Append data for report details
      LOOP AT ta_material.
        DATA: ta_msegtemp LIKE ta_mseg OCCURS 2 WITH HEADER LINE.
    *-->Loop at all material documents into a temp table
        REFRESH ta_msegtemp. CLEAR ta_msegtemp.
        LOOP AT ta_mseg WHERE matnr = ta_material-matnr AND
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                              lgort = ta_material-lgort.
          ta_msegtemp = ta_mseg. APPEND ta_msegtemp.
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        w_mengb = ta_material-labst +
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                        ta_material-einme +
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          CONTINUE.
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        SORT ta_msegtemp BY budat DESCENDING.
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        LOOP AT ta_msegtemp.
    *->Begin of KL02- -
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             begda               = ta_msegtemp-budat
             endda               = sy-datum
           IMPORTING
            NOYRS               =
             nomns               = w_mths
             nodys               = w_days
          EXCEPTIONS
            invalid_dates       = 1
            overflow            = 2
            OTHERS              = 3
    *->End of KL02- -
    *->Begin of KL02+ -
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          clear w_days.
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    *--> Include today's date into calculation
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    *->End of KL02+ -
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                i_matnr              = ta_material-matnr
                i_in_me              = ta_msegtemp-meins
                i_out_me             = ta_material-meins
                i_menge              = ta_msegtemp-menge
              IMPORTING
                e_menge              = ta_msegtemp-menge
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                error_in_application = 1
                error                = 2
                OTHERS               = 3.
          ENDIF.
    *--> SC01 - Start of Insertion **
          SELECT SINGLE peinh
                        verpr
                   INTO (lv_peinh,
                         lv_verpr)
                   FROM mbew
                  WHERE matnr = ta_material-matnr
                    AND bwkey = ta_material-werks.
          IF sy-subrc = 0.
            ta_material-verpr = lv_verpr.
          ENDIF.
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    *-->check whether the mseg value is LE than the stock value
          IF ta_msegtemp-menge LE w_mengb.
    *-->Days < 10 days
            IF w_days  LE 1 AND w_days EQ 366.
              i_mat2-meng0 = i_mat2-meng0 + ta_msegtemp-menge.
              IF NOT lv_peinh EQ 0.
                i_mat2-value0 = ( i_mat2-meng0 / lv_peinh ) *
    ta_material-verpr."+SC01
              ENDIF.
    **-->Days 11 - 30 days
           ELSEIF w_days >= 11 AND w_days =< 30.
             i_mat2-meng1 = i_mat2-meng1 + ta_msegtemp-menge.
             IF NOT lv_peinh EQ 0.
               i_mat2-value1 = ( i_mat2-meng1 / lv_peinh ) *
    *ta_material-verpr."+SC01
             ENDIF.
    **-->Days 31-60 days
           ELSEIF w_days >= 31 AND w_days =< 60.
             i_mat2-meng2 = i_mat2-meng2 + ta_msegtemp-menge.
             IF NOT lv_peinh EQ 0.
               i_mat2-value2 = ( i_mat2-meng2 / lv_peinh ) *
    *ta_material-verpr."+SC01
             ENDIF.
    **-->Days 61-90 days
           ELSEIF w_days >= 61 AND w_days =< 90.
             i_mat2-meng3 = i_mat2-meng3 + ta_msegtemp-menge.
             IF NOT lv_peinh EQ 0.
               i_mat2-value3 = ( i_mat2-meng3 / lv_peinh ) *
    *ta_material-verpr.
             ENDIF.
    **-->Days > 90 days
           ELSEIF w_days > 90.
             i_mat2-meng4 = i_mat2-meng4 + ta_msegtemp-menge.
             IF NOT lv_peinh EQ 0.
               i_mat2-value4 = ( i_mat2-meng4 / lv_peinh ) *
    *ta_material-verpr.
             ENDIF.
           ENDIF.
    *->End of KL002+
            w_mengb = w_mengb - ta_msegtemp-menge.
          ELSE.
            IF NOT w_mengb LE 0 .
                 IF NOT lv_peinh EQ 0.
    **->End of KL001+
                   i_mat2-value0 = ( i_mat2-meng0 / lv_peinh )
    *ta_material-verpr."+SC01
    **->Begin of KL001+
                 ENDIF.
               ELSEIF w_days GE 22.
                 i_mat2-meng3 = i_mat2-meng3 + w_mengb.
                 IF NOT lv_peinh EQ 0.
                   i_mat2-value3 = ( i_mat2-meng3 / lv_peinh )
    *ta_material-verpr.
                 ENDIF.
    **->End of KL001+
               ENDIF.
    **--> SC02 - End  of Insertioin **
           ENDIF.
    *->End of KL002-
    *->Begin of KL002+
    *--> < 10 days
                     IF w_days EQ 1 AND w_days LE 366.
              i_mat2-meng0 = i_mat2-meng0 + ta_msegtemp-menge.
              IF NOT lv_peinh EQ 0.
                i_mat2-value0 = ( i_mat2-meng0 / lv_peinh ) *
    ta_material-verpr."+SC01
              ENDIF.
             ELSEIF w_days >= 11 AND w_days =< 30.
               i_mat2-meng1 = i_mat2-meng1 + w_mengb.
               IF NOT lv_peinh EQ 0.
                 i_mat2-value1 = ( i_mat2-meng1 / lv_peinh ) *
    *ta_material-verpr.
               ENDIF.
    **--> 31 - 60 days
             ELSEIF w_days >= 31 AND w_days =< 60.
               i_mat2-meng2 = i_mat2-meng2 + w_mengb.
               IF NOT lv_peinh EQ 0.
                 i_mat2-value2 = ( i_mat2-meng2 / lv_peinh ) *
    *ta_material-verpr.
               ENDIF.
    **--> 61 - 90 days
             ELSEIF w_days >= 61 AND w_days =< 90.
               i_mat2-meng3 = i_mat2-meng3 + w_mengb.
               IF NOT lv_peinh EQ 0.
                 i_mat2-value3 = ( i_mat2-meng3 / lv_peinh ) *
    *ta_material-verpr.
               ENDIF.
    **--> > 90 days
             ELSEIF w_days > 90.
               i_mat2-meng4 = i_mat2-meng4 + w_mengb.
               IF NOT lv_peinh EQ 0.
                 i_mat2-value4 = ( i_mat2-meng4 / lv_peinh ) *
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               ENDIF.
              ENDIF.
    *->End of KL002+
              w_mengb = 0.
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          ENDIF.   "check Mat doc amount is LE than the stock value
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    *-->append i_mat2 values
        i_mat2-werks = ta_material-werks.
        i_mat2-lgort = ta_material-lgort.
        i_mat2-matnr = ta_material-matnr.
        i_mat2-maktx = ta_material-maktx.
        i_mat2-meins = ta_material-meins.
        APPEND i_mat2. CLEAR i_mat2.
      ENDLOOP. " ta_material
    *-->Append data for summary data
      DATA: i_lgort LIKE i_mat2 OCCURS 2 WITH HEADER LINE.
      i_lgort[] = i_mat2[].
      SORT i_lgort BY werks lgort.
      DELETE ADJACENT DUPLICATES FROM i_lgort COMPARING werks lgort.
      DATA: v_cnt0(5), v_cnt1(5), v_cnt2(5), v_cnt3(5), v_cnt4(5),
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