Efficiency

Hi,
I have a code
LOOP AT I_VBRK_VBRP.
    move sy-TABIX to vbrk_vbrp_indx.
    move-corresponding i_vbrk_vbrp to w_vbrk_vbrp.
    READ TABLE I_KONV WITH KEY KNUMV = I_VBRK_VBRP-KNUMV
                               KPOSN = I_VBRK_VBRP-POSNR
                               BINARY SEARCH.
    IF SY-SUBRC NE 0.
      DELETE I_VBRK_VBRP.
    ELSE.
              LOOP AT I_KONV WHERE KNUMV = I_VBRK_VBRP-KNUMV
                             AND KPOSN = I_VBRK_VBRP-POSNR.
      IF I_VBRK_VBRP-KSCHL IS INITIAL
          OR NOT RB_AG5 IS INITIAL.
        MOVE I_KONV-KSCHL TO I_VBRK_VBRP-KSCHL.
                       MODIFY I_VBRK_VBRP index vbrk_vbrp_indx.
                     ELSE.
        MOVE I_KONV-KSCHL TO W_VBRK_VBRP-KSCHL.
        APPEND W_VBRK_VBRP.
        CLEAR W_VBRK_VBRP.
                     ENDIF.
                ENDLOOP.
      ENDIF.
    ENDLOOP.
I want to merge the read operation in the second loop to make the operation more efficint.
Can anybody suggest me how to do?(without changing the output)

hi,
use like this.
read table I_KONV into <w_area> with key KNUMV = I_VBRK_VBRP-KNUMV
KPOSN = I_VBRK_VBRP-POSNR.
binary search.
if sy-subrc eq 0.
IF I_VBRK_VBRP-KSCHL IS INITIAL
OR NOT RB_AG5 IS INITIAL.
MOVE I_KONV-KSCHL TO I_VBRK_VBRP-KSCHL.
MODIFY I_VBRK_VBRP index vbrk_vbrp_indx.
ELSE.
MOVE I_KONV-KSCHL TO W_VBRK_VBRP-KSCHL.
APPEND W_VBRK_VBRP.
CLEAR W_VBRK_VBRP.
ENDIF.
endif.
<b><i>Reward points if useful</i></b>
Chandra

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What i have been given to do is to select all data from respective tables put them into one internal table & then finally making tab2 or tab3 in the report to be the final table.I am not sure which among these two i can make final table.
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TABLES : mseg, "Document Segment : Material
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DATA: lf_fm_name            TYPE rs38l_fnam.
DATA: ls_control_param      TYPE ssfctrlop.
DATA: ls_composer_param     TYPE ssfcompop.
DATA: ls_recipient          TYPE swotobjid.
DATA: ls_sender             TYPE swotobjid.
DATA: lf_formname           TYPE tdsfname.
DATA: ls_addr_key           LIKE addr_key.
DATA: ls_dlv_land           LIKE vbrk-land1.
DATA: ls_job_info           TYPE ssfcrescl.
DATA: ls_otpt_opt           TYPE ssfcompop.
DATA: retcode TYPE sy-subrc.
DATA: cntr TYPE i VALUE 0.
DATA: cntr1 TYPE i .
DATA: number TYPE SSFCRESCL-SPOOLIDS. " OCCURS 0 WITH HEADER LINE.
DATA: TSP01 type TABLE OF TSP01_SP0R.
DATA : BEGIN OF itab OCCURS 0.
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DATA : post1 LIKE proj-post1,           "Project Definition
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DATA : END OF itab.
DATA : BEGIN OF jtab OCCURS 0.
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DATA : END OF jtab.
DATA : itab1 LIKE itab OCCURS 0
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DATA :itab2 LIKE itab OCCURS 0
      WITH HEADER LINE.
DATA: itab3 LIKE itab OCCURS 0 WITH HEADER LINE.
SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME TITLE text_001.
SELECT-OPTIONS : gr_num FOR mseg-mblnr . "no INTERVALS.
PARAMETERS : gr_note LIKE itemset-xopsel RADIOBUTTON GROUP rad1.
SELECTION-SCREEN SKIP.
SELECT-OPTIONS : mat_num FOR mseg-mblnr . "no INTERVALS.
PARAMETERS : mat_slip LIKE itemset-xopsel RADIOBUTTON GROUP rad1.
SELECTION-SCREEN END OF BLOCK b1.
SELECTION-SCREEN SKIP.
CASE 'X'.
WHEN gr_note.
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WHEN mat_slip.
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ENDCASE.
FORM gr_display .
*break developer1.
SELECT mblnr mjahr matnr werks lgort lifnr menge meins
         erfmg bpmng ebeln ps_psp_pnr zeile lsmng erfme
FROM mseg
INTO CORRESPONDING FIELDS OF TABLE itab
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      WHERE lifnr = itab-lifnr.
      itab-name1 = itab2-name1.
      itab-ort01 = itab2-ort01.
      MODIFY itab TRANSPORTING name1 ort01.
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    SELECT budat bldat cpudt xblnr bktxt FROM mkpf
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      WHERE mblnr = itab-mblnr.
      itab-budat = itab2-budat.
      itab-bldat = itab2-bldat.
      itab-cpudt = itab2-cpudt.
      itab-xblnr = itab2-xblnr.
      itab-bktxt = itab2-bktxt.
      MODIFY itab TRANSPORTING budat bldat cpudt xblnr bktxt.
    ENDSELECT.
ENDLOOP.
LOOP AT itab .
    ON CHANGE OF itab-mblnr.
      itab3-mblnr = itab-mblnr.
      itab3-post1 = itab-post1.
      itab3-post2 = itab-post2.
      itab3-name1 = itab-name1.
      itab3-ort01 = itab-ort01.
      itab3-bldat = itab-bldat.
      APPEND itab3.
      CLEAR itab3.
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ENDLOOP.
jtab-mblnr = itab-mblnr.
jtab-xblnr = itab-xblnr.
jtab-budat = itab-budat.
jtab-bktxt = itab-bktxt.
jtab-lsmng = itab-lsmng.
jtab-erfmg = itab-erfmg.
jtab-erfme = itab-erfme.
jtab-matnr = itab-matnr.
jtab-maktx = itab-maktx.
jtab-zeile = itab-zeile.
APPEND jtab.
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VARIANT                  = ' '
DIRECT_CALL              = ' '
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EXCEPTIONS
NO_FORM                  = 1
NO_FUNCTION_MODULE       = 2
OTHERS                   = 3
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MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
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      EXPORTING
       control_parameters         = ls_control_param
       output_options             = ls_otpt_opt
       user_settings              = 'X'
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IMPORTING
DOCUMENT_OUTPUT_INFO       =
JOB_OUTPUT_INFO            =
JOB_OUTPUT_OPTIONS         =
      TABLES
        gr_mseg                    = itab2
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       formatting_error           = 1
       internal_error             = 2
       send_error                 = 3
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MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
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ENDFORM.                    " GR_DISPLAY
FORM mat_display .
SELECT mblnr mjahr matnr werks lgort lifnr menge meins
         erfmg bpmng ebeln ps_psp_pnr zeile lsmng erfme
         mat_pspnr nplnr aufpl aplzl
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      WHERE aufnr = itab-nplnr.
      itab-ktext = itab1-ktext.
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    WHERE pspnr = itab-psphi.
      itab-post1 = itab2-post1.
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    REFRESH itab2.
    SELECT maktx FROM makt INTO CORRESPONDING FIELDS OF itab2
      WHERE matnr = itab-matnr.
      itab-maktx = itab2-maktx.
      MODIFY itab TRANSPORTING maktx.
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    REFRESH itab2.
    SELECT name1 ort01 FROM lfa1 INTO CORRESPONDING FIELDS OF itab2
      WHERE lifnr = itab-lifnr.
      itab-name1 = itab2-name1.
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      MODIFY itab TRANSPORTING name1 ort01.
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    REFRESH itab2.
    SELECT budat bldat cpudt xblnr bktxt FROM mkpf
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      WHERE mblnr = itab-mblnr.
      itab-budat = itab2-budat.
      itab-bldat = itab2-bldat.
      itab-cpudt = itab2-cpudt.
      itab-xblnr = itab2-xblnr.
      itab-bktxt = itab2-bktxt.
     break developer1.
      MODIFY itab TRANSPORTING budat bldat cpudt xblnr bktxt.
    ENDSELECT.
ENDLOOP.
LOOP AT itab.
    ON CHANGE OF itab-mblnr.
      itab3-mblnr = itab-mblnr.
      itab3-budat = itab-budat.
      itab3-bldat = itab-bldat.
      itab3-post1 = itab-post1.
      itab3-ktext = itab-ktext.
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      CLEAR itab3.
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ENDLOOP.
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      EXPORTING
        formname                 = 'ZMM_MAT_ISSUE_SLIP'
VARIANT                  = ' '
DIRECT_CALL              = ' '
     IMPORTING
       fm_name                  = fname
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NO_FORM                  = 1
NO_FUNCTION_MODULE       = 2
OTHERS                   = 3
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MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
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    INTERNAL_ERROR             = 2
    SEND_ERROR                 = 3
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MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
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             INCLUDE STRUCTURE mseg.
TYPES: post1 LIKE proj-post1, "Project Definition
             pspnr LIKE proj-pspnr, "WBS element
             maktx LIKE makt-maktx, "Material Description
             name1 LIKE lfa1-name1, "Name of the supplier
             budat LIKE mkpf-budat, "Posting date
             bldat LIKE mkpf-bldat, "Document date
             cpudt LIKE mkpf-cpudt, "Date on which account document was entered
             psphi LIKE prps-psphi, "Current number of project
             post2 LIKE prps-post1, "WBS Definition
             xblnr LIKE mkpf-xblnr, "Reference number( in this case challan number)
             bktxt LIKE mkpf-bktxt, "Header text
             ort01 LIKE lfa1-ort01, "vendor city
             ktext LIKE aufk-ktext, "network description
             ltxa1 LIKE afvc-ltxa1, "operation short text
             END OF ty_itab.
* Declare your internal tables and the corresponding working structures
DATA: itab1 type standard table of ty_itab,
           itab2 type standard table of ty_itab,
           itab3 type standard table of ty_itab,
           jtab type standard table of ty_itab,
          wa_itab1 type ty_itab,
          wa_itab2 type ty_itab,
          wa_itab3 type ty_itab,
          wa_jtab   type ty_itab.
-- Don't use
LOOP at itab.
SELECT ...... WHERE pspnr = itab-ps_psp_pnr.
ENDSELECT.
SELECT * ...
ENDSELECT
SELECT * .....
ENDSELECT
ENDLOOP.
Instead try to populate itab, itab1, itab2 each in ONE select statement using FOR ALL ENTRIES clause. After that you have to perform the LOOP runs using LOOP at itab INTO wa_itab. The more redundant SELECTs, the slower the program! When you perform a LOOP run, let say over itab1 and you need a corresponding record from table itab2 the use READ <itab> with key.
One additional, very important hint: Using internal tables w/o header line the CLEAR statement has another functionality than with HEADER LINE
CLEAR with HEADER LINE clears the HEADER line only
CLEAR w/o HEADER LINE clears the entire table. CLEAR does the same as REFRESH.
Another performance improvement is (when itab contains a lot of records) using FIELD-SYMBOLS.
A simple example is
FIELD-SYMBOLS: <fs> type itab.
LOOP at itab assigning <fs>.
wa_itab3-post1 = <fs>-post1.
wa_itab3-post2 = <fs>-post2.
APPEND wa_itab3 to itab.
ENDLOOP.
In this case no data values have to be transfered to a working field. The values are taken directly from the current line of the internal table.
-- For better readability disign some events like START-OF-SELECTION, END-OF-SELECTION, INITIALIZATION and others.
Try to gather all in SmartForms needed fields and pop them into table itab3.
I hope this helps improving zgr_note's efficiency.
Good luck,
Heinz

Report on smartform.Replace select endselect with something to efficient it

To make a smartform report efficient by removing all occurs & modify internal table statements.
What i have been given to do is to select all data from respective tables put them into one internal table & then finally making tab2 or tab3 in the report to be the final table.I am not sure which among these two i can make final table.
THE CODE is:
REPORT zgr_note.
TABLES : mseg, "Document Segment : Material
         prps, "WBS element master data
         proj, "Project Definition
         mkpf, "Header : Material Document
         lfa1, "Vendor Master
         makt, "Material Description
         aufk, "Order Master Data
         afvc. "Operation within an order
DATA : fname LIKE rs38l-name. "Name of Function Module
DATA: lf_fm_name            TYPE rs38l_fnam.
DATA: ls_control_param      TYPE ssfctrlop.
DATA: ls_composer_param     TYPE ssfcompop.
DATA: ls_recipient          TYPE swotobjid.
DATA: ls_sender             TYPE swotobjid.
DATA: lf_formname           TYPE tdsfname.
DATA: ls_addr_key           LIKE addr_key.
DATA: ls_dlv_land           LIKE vbrk-land1.
DATA: ls_job_info           TYPE ssfcrescl.
DATA: ls_otpt_opt           TYPE ssfcompop.
DATA: retcode TYPE sy-subrc.
DATA: cntr TYPE i VALUE 0.
DATA: cntr1 TYPE i .
DATA: number TYPE SSFCRESCL-SPOOLIDS. " OCCURS 0 WITH HEADER LINE.
DATA: TSP01 type TABLE OF TSP01_SP0R.
DATA : BEGIN OF itab OCCURS 0.
        INCLUDE STRUCTURE mseg.
DATA : post1 LIKE proj-post1,           "Project Definition
       pspnr LIKE proj-pspnr,           "WBS element
       maktx LIKE makt-maktx,           "Material Description
       name1 LIKE lfa1-name1,           "Name of the supplier
       budat LIKE mkpf-budat,           "Posting date
       bldat LIKE mkpf-bldat,           "Document date
       cpudt LIKE mkpf-cpudt,           "Date on which account document was entered
       psphi LIKE prps-psphi,           "Current number of project
       post2 LIKE prps-post1,           "WBS Definition
       xblnr LIKE mkpf-xblnr,           "Reference number( in this case challan number)
       bktxt LIKE mkpf-bktxt,           "Header text
       ort01 LIKE lfa1-ort01,           "vendor city
       ktext LIKE aufk-ktext,           "network description
       ltxa1 LIKE afvc-ltxa1.           "operation short text
DATA : END OF itab.
DATA : BEGIN OF jtab OCCURS 0.
        INCLUDE STRUCTURE itab.
DATA : END OF jtab.
DATA : itab1 LIKE itab OCCURS 0
      WITH HEADER LINE.
DATA :itab2 LIKE itab OCCURS 0
      WITH HEADER LINE.
DATA: itab3 LIKE itab OCCURS 0 WITH HEADER LINE.
SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME TITLE text_001.
SELECT-OPTIONS : gr_num FOR mseg-mblnr . "no INTERVALS.
PARAMETERS : gr_note LIKE itemset-xopsel RADIOBUTTON GROUP rad1.
SELECTION-SCREEN SKIP.
SELECT-OPTIONS : mat_num FOR mseg-mblnr . "no INTERVALS.
PARAMETERS : mat_slip LIKE itemset-xopsel RADIOBUTTON GROUP rad1.
SELECTION-SCREEN END OF BLOCK b1.
SELECTION-SCREEN SKIP.
CASE 'X'.
WHEN gr_note.
    PERFORM gr_display.
WHEN mat_slip.
    PERFORM mat_display.
ENDCASE.
FORM gr_display .
*break developer1.
SELECT mblnr mjahr matnr werks lgort lifnr menge meins
         erfmg bpmng ebeln ps_psp_pnr zeile lsmng erfme
FROM mseg
INTO CORRESPONDING FIELDS OF TABLE itab
   WHERE mblnr IN gr_num.
LOOP AT itab.
    SELECT pspnr psphi post1 INTO CORRESPONDING FIELDS OF itab1
      FROM prps WHERE pspnr = itab-ps_psp_pnr.
      itab-psphi = itab1-psphi.
      itab-pspnr = itab1-pspnr.
      itab-post2 = itab1-post1.
      MODIFY itab TRANSPORTING psphi pspnr post2.
    ENDSELECT.
    SELECT post1 FROM proj INTO CORRESPONDING FIELDS OF itab2
    WHERE pspnr = itab-psphi.
      itab-post1 = itab2-post1.
      MODIFY itab TRANSPORTING post1.
    ENDSELECT.
    REFRESH itab2.
    SELECT maktx FROM makt INTO CORRESPONDING FIELDS OF itab2
      WHERE matnr = itab-matnr.
      itab-maktx = itab2-maktx.
      MODIFY itab TRANSPORTING maktx.
    ENDSELECT.
    REFRESH itab2.
    SELECT name1 ort01 FROM lfa1 INTO CORRESPONDING FIELDS OF itab2
      WHERE lifnr = itab-lifnr.
      itab-name1 = itab2-name1.
      itab-ort01 = itab2-ort01.
      MODIFY itab TRANSPORTING name1 ort01.
    ENDSELECT.
    REFRESH itab2.
    SELECT budat bldat cpudt xblnr bktxt FROM mkpf
      INTO CORRESPONDING FIELDS OF itab2
      WHERE mblnr = itab-mblnr.
      itab-budat = itab2-budat.
      itab-bldat = itab2-bldat.
      itab-cpudt = itab2-cpudt.
      itab-xblnr = itab2-xblnr.
      itab-bktxt = itab2-bktxt.
      MODIFY itab TRANSPORTING budat bldat cpudt xblnr bktxt.
    ENDSELECT.
ENDLOOP.
LOOP AT itab .
    ON CHANGE OF itab-mblnr.
      itab3-mblnr = itab-mblnr.
      itab3-post1 = itab-post1.
      itab3-post2 = itab-post2.
      itab3-name1 = itab-name1.
      itab3-ort01 = itab-ort01.
      itab3-bldat = itab-bldat.
      APPEND itab3.
      CLEAR itab3.
    ENDON.
ENDLOOP.
jtab-mblnr = itab-mblnr.
jtab-xblnr = itab-xblnr.
jtab-budat = itab-budat.
jtab-bktxt = itab-bktxt.
jtab-lsmng = itab-lsmng.
jtab-erfmg = itab-erfmg.
jtab-erfme = itab-erfme.
jtab-matnr = itab-matnr.
jtab-maktx = itab-maktx.
jtab-zeile = itab-zeile.
APPEND jtab.
LOOP AT itab3.
    CLEAR: itab2,itab2[].
    LOOP AT itab WHERE mblnr = itab3-mblnr.
      MOVE-CORRESPONDING itab TO itab2.
      APPEND itab2.
      CLEAR itab2.
    ENDLOOP.
    CALL FUNCTION 'SSF_FUNCTION_MODULE_NAME'
      EXPORTING
        formname                 = 'ZMM_GOODS_RECEIPT1'
VARIANT                  = ' '
DIRECT_CALL              = ' '
     IMPORTING
       fm_name                  = fname
EXCEPTIONS
NO_FORM                  = 1
NO_FUNCTION_MODULE       = 2
OTHERS                   = 3
    IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
*break developer1.
PERFORM print_parameters.
    CALL FUNCTION fname
      EXPORTING
       control_parameters         = ls_control_param
       output_options             = ls_otpt_opt
       user_settings              = 'X'
       gr_mseg_hdr                = itab3
IMPORTING
DOCUMENT_OUTPUT_INFO       =
JOB_OUTPUT_INFO            =
JOB_OUTPUT_OPTIONS         =
      TABLES
        gr_mseg                    = itab2
     EXCEPTIONS
       formatting_error           = 1
       internal_error             = 2
       send_error                 = 3
       user_canceled              = 4
       OTHERS                     = 5
    IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
ENDLOOP.
ENDFORM.                    " GR_DISPLAY
FORM mat_display .
SELECT mblnr mjahr matnr werks lgort lifnr menge meins
         erfmg bpmng ebeln ps_psp_pnr zeile lsmng erfme
         mat_pspnr nplnr aufpl aplzl
FROM mseg
INTO CORRESPONDING FIELDS OF TABLE itab
   WHERE mblnr IN mat_num.
LOOP AT itab.
    SELECT ltxa1 FROM afvc INTO CORRESPONDING FIELDS OF itab1
      WHERE aufpl = itab-aufpl AND aplzl = itab-aplzl.
      itab-ltxa1 = itab1-ltxa1.
      MODIFY itab TRANSPORTING ltxa1.
    ENDSELECT.
    REFRESH itab1.
    SELECT ktext FROM aufk INTO CORRESPONDING FIELDS OF itab1
      WHERE aufnr = itab-nplnr.
      itab-ktext = itab1-ktext.
      MODIFY itab TRANSPORTING ktext.
    ENDSELECT.
    REFRESH itab1.
    SELECT pspnr psphi post1 INTO CORRESPONDING FIELDS OF itab1
      FROM prps WHERE pspnr = itab-mat_pspnr.
      itab-psphi = itab1-psphi.
      itab-pspnr = itab1-pspnr.
      itab-post2 = itab1-post1.
      MODIFY itab TRANSPORTING psphi pspnr post2.
    ENDSELECT.
    SELECT post1 FROM proj INTO CORRESPONDING FIELDS OF itab2
    WHERE pspnr = itab-psphi.
      itab-post1 = itab2-post1.
      MODIFY itab TRANSPORTING post1.
    ENDSELECT.
    REFRESH itab2.
    SELECT maktx FROM makt INTO CORRESPONDING FIELDS OF itab2
      WHERE matnr = itab-matnr.
      itab-maktx = itab2-maktx.
      MODIFY itab TRANSPORTING maktx.
    ENDSELECT.
    REFRESH itab2.
    SELECT name1 ort01 FROM lfa1 INTO CORRESPONDING FIELDS OF itab2
      WHERE lifnr = itab-lifnr.
      itab-name1 = itab2-name1.
      itab-ort01 = itab2-ort01.
      MODIFY itab TRANSPORTING name1 ort01.
    ENDSELECT.
    REFRESH itab2.
    SELECT budat bldat cpudt xblnr bktxt FROM mkpf
      INTO CORRESPONDING FIELDS OF itab2
      WHERE mblnr = itab-mblnr.
      itab-budat = itab2-budat.
      itab-bldat = itab2-bldat.
      itab-cpudt = itab2-cpudt.
      itab-xblnr = itab2-xblnr.
      itab-bktxt = itab2-bktxt.
     break developer1.
      MODIFY itab TRANSPORTING budat bldat cpudt xblnr bktxt.
    ENDSELECT.
ENDLOOP.
LOOP AT itab.
    ON CHANGE OF itab-mblnr.
      itab3-mblnr = itab-mblnr.
      itab3-budat = itab-budat.
      itab3-bldat = itab-bldat.
      itab3-post1 = itab-post1.
      itab3-ktext = itab-ktext.
      APPEND itab3.
      CLEAR itab3.
    ENDON.
ENDLOOP.
LOOP AT itab3.
    CLEAR: itab2, itab2[].
    LOOP AT itab WHERE mblnr EQ itab3-mblnr.
      MOVE-CORRESPONDING itab TO itab2.
      APPEND itab2.
      CLEAR itab2.
    ENDLOOP.
    CALL FUNCTION 'SSF_FUNCTION_MODULE_NAME'
      EXPORTING
        formname                 = 'ZMM_MAT_ISSUE_SLIP'
VARIANT                  = ' '
DIRECT_CALL              = ' '
     IMPORTING
       fm_name                  = fname
EXCEPTIONS
NO_FORM                  = 1
NO_FUNCTION_MODULE       = 2
OTHERS                   = 3
    IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
    ls_control_param-no_dialog = 'X'.
*ls_control_param-preview = 'X'.
*ls_control_param-getotf = 'X'.
   ls_otpt_opt-tdnoprev = 'X'.
    ls_otpt_opt-tdnewid = ''.
    ls_otpt_opt-tdimmed = 'X'.
    ls_otpt_opt-tddest = 'LP01'.
    CALL FUNCTION fname
      EXPORTING
    ARCHIVE_INDEX              =
    ARCHIVE_INDEX_TAB          =
    ARCHIVE_PARAMETERS         =
       control_parameters         = ls_control_param
    MAIL_APPL_OBJ              =
    MAIL_RECIPIENT             =
    MAIL_SENDER                =
       output_options             = ls_otpt_opt
       user_settings              = 'X'
        mat_slip_hdr               = itab3
   IMPORTING
    DOCUMENT_OUTPUT_INFO       =
     JOB_OUTPUT_INFO            = ls_job_info
    JOB_OUTPUT_OPTIONS         =
      TABLES
        mat_slip                   = itab2
EXCEPTIONS
    FORMATTING_ERROR           = 1
    INTERNAL_ERROR             = 2
    SEND_ERROR                 = 3
    USER_CANCELED              = 4
    OTHERS                     = 5
    IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
ENDLOOP.
ENDFORM.

Hi saswat mohanty ,
Welcome to SDN. Ya your program takes lot of time to give the output becauase of more select endselects in a loop.
You are hitting as many times as the records in the ITAB.
Instead use "for all entries"   clause for fetching the complete data from a table atonce.
Example: your itab is there.
Select * from xyz
   into table itab2
   for all entries in itab
where field1 eq itab-field1
    and field2 eq itab-field2.
After fetching the data you can populate the final table by looping through ITAB and itab2.
This is best procedure to reduce the load on database.
Implement this in your program to improve performance.
REWARD POINTS IF USEFUL.
Venkat.

SQL query with multiple tables - what is the most efficient way?

Hello I am learning PL/SQL. I have a simple procedure where I need to find number of employees and departments per location as per user input of location_id.
I have 3 Tables:
LOCATIONS
location_id (pk)
location_name
DEPARTMENTS
department_id (pk)
location_id (fk)
department_name
EMPLOYEES
employee_id (pk)
department_id (fk)
employee_name
1 Location can have 0-MANY Departments
1 Employee has 1 Department
Here is the query I came up with for PL/SQL procedure:
/*Ecount, Dcount are NUMBER variables */
SELECT SUM (EmployeeCount), COUNT(DepartmentNumber)
     INTO Ecount, Dcount
     FROM
     (SELECT COUNT(employee_id) EmployeeCount, department_id DepartmentNumber
          FROM employees
          GROUP BY department_id
          HAVING department_id IN
                    (SELECT department_id
                    FROM departments
                    WHERE location_id = userInput));
I do get the correct result, but I am just wondering if my query is on the right track and if there is a more "efficient" way of doing this.
Thanks in advance for helping a newbie out.

Hi,
Welcome to the forum!
Something like this will be more efficient:
SELECT    COUNT (employee_id)               AS ECount
,       COUNT (DISTINCT department_id)     AS DCount
FROM       employees
WHERE       department_id IN (     SELECT     department_id
                    FROM      departments
                    WHERE      location_id = :userInput
;You should also try a join instead of the IN subquery.
For efficiency, do only the things you need to do.
For example, you don't need a count of employees in each department, so don't compute one. That means you won't need the in-line view, so don't have one.
You don't need PL/SQL for this job, so don't use PL/SQL if you don't have to. (I realize this question was out of context, so you may have good reasons for doing this in PL/SQL.)
Do all filtering as early as possible. Don't waste effort computing things that won't be used .
A particular example of this is: Never use a HAVING clause when you can use a WHERE clause. What's the difference between a WHERE clause and a HAVING clause? The WHERE clause is applied before aggregate functions are computed, and the HAVING clause is applied after; there's no other difference. Therefore, if the HAVING clause isn't referencing an aggregate function, it could be done in a WHERE clause instead.

Power Efficiency Diagnostics Report - How to fix the below mentioned issues?

Power Efficiency Diagnostics Report
Computer Name
SONY-VAIO
Scan Time
2014-04-12T15:29:55Z
Scan Duration
60 seconds
System Manufacturer
Sony Corporation
System Product Name
VPCEH25EN
BIOS Date
04/19/2012
BIOS Version
R0200Z9
OS Build
7601
Platform Role
PlatformRoleMobile
Plugged In
false
Process Count
134
Thread Count
1477
Report GUID
{bd655715-c758-4329-9f37-029a6c41aa27}
Analysis Results
Errors
USB Suspend:USB Device not Entering Suspend
The USB device did not enter the Suspend state. Processor power management may be prevented if a USB device does not enter the Suspend state when not in use.
Device Name
USB Composite Device
Host Controller ID
PCI\VEN_8086&DEV_1C26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_12D1&PID_14DB
Port Path
1,1
USB Suspend:USB Device not Entering Suspend
The USB device did not enter the Suspend state. Processor power management may be prevented if a USB device does not enter the Suspend state when not in use.
Device Name
USB Mass Storage Device
Host Controller ID
PCI\VEN_8086&DEV_1C26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_0BB4&PID_0001
Port Path
1,3
USB Suspend:USB Device not Entering Suspend
The USB device did not enter the Suspend state. Processor power management may be prevented if a USB device does not enter the Suspend state when not in use.
Device Name
USB Root Hub
Host Controller ID
PCI\VEN_8086&DEV_1C26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_8086&PID_1C26
Port Path
USB Suspend:USB Device not Entering Suspend
The USB device did not enter the Suspend state. Processor power management may be prevented if a USB device does not enter the Suspend state when not in use.
Device Name
Generic USB Hub
Host Controller ID
PCI\VEN_8086&DEV_1C26
Host Controller Location
PCI bus 0, device 29, function 0
Device ID
USB\VID_8087&PID_0024
Port Path
1
CPU Utilization:Processor utilization is high
The average processor utilization during the trace was high. The system will consume less power when the average processor utilization is very low. Review processor utilization for individual processes to determine which applications and services contribute
the most to total processor utilization.
Average Utilization (%)
10.44
Platform Power Management Capabilities:PCI Express Active-State Power Management (ASPM) Disabled
PCI Express Active-State Power Management (ASPM) has been disabled due to a known incompatibility with the hardware in this computer.
Warnings
Platform Timer Resolution:Platform Timer Resolution
The default platform timer resolution is 15.6ms (15625000ns) and should be used whenever the system is idle. If the timer resolution is increased, processor power management technologies may not be effective. The timer resolution may be increased due to
multimedia playback or graphical animations.
Current Timer Resolution (100ns units)
10000
Maximum Timer Period (100ns units)
156001
Platform Timer Resolution:Outstanding Timer Request
A program or service has requested a timer resolution smaller than the platform maximum timer resolution.
Requested Period
10000
Requesting Process ID
2768
Requesting Process Path
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\chrome.exe
Platform Timer Resolution:Outstanding Timer Request
A program or service has requested a timer resolution smaller than the platform maximum timer resolution.
Requested Period
10000
Requesting Process ID
7268
Requesting Process Path
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\chrome.exe
Power Policy:802.11 Radio Power Policy is Maximum Performance (Plugged In)
The current power policy for 802.11-compatible wireless network adapters is not configured to use low-power modes.
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
SRService.exe
PID
2632
Average Utilization (%)
1.61
Module
Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe
1.34
\Device\HarddiskVolume3\Windows\SysWOW64\kernel32.dll
0.04
\Device\HarddiskVolume3\Windows\System32\wow64.dll
0.04
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
1728
Average Utilization (%)
1.40
Module
Average Module Utilization (%)
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\34.0.1847.116\chrome_child.dll
1.21
\SystemRoot\system32\ntoskrnl.exe
0.10
\Device\HarddiskVolume3\Windows\SysWOW64\ntdll.dll
0.01
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
5264
Average Utilization (%)
0.87
Module
Average Module Utilization (%)
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\34.0.1847.116\chrome.dll
0.33
\SystemRoot\system32\ntoskrnl.exe
0.27
\Device\HarddiskVolume3\Windows\SysWOW64\ntdll.dll
0.04
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
7268
Average Utilization (%)
0.59
Module
Average Module Utilization (%)
\Device\HarddiskVolume3\Windows\SysWOW64\nvd3dum.dll
0.15
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\34.0.1847.116\libglesv2.dll
0.08
\SystemRoot\system32\ntoskrnl.exe
0.07
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
System
PID
4
Average Utilization (%)
0.55
Module
Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe
0.36
\SystemRoot\System32\drivers\dxgmms1.sys
0.06
\SystemRoot\system32\DRIVERS\nvlddmkm.sys
0.02
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
svchost.exe
PID
860
Average Utilization (%)
0.44
Module
Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe
0.28
\Device\HarddiskVolume3\Windows\System32\rpcrt4.dll
0.04
\Device\HarddiskVolume3\Windows\System32\ntdll.dll
0.03
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
AvastSvc.exe
PID
1316
Average Utilization (%)
0.38
Module
Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe
0.13
\Device\HarddiskVolume3\Program Files\Alwil Software\Avast5\defs\14041100\algo.dll
0.05
\Device\HarddiskVolume3\Windows\winsxs\x86_avast.vc110.crt_2036b14a11e83e4a_11.0.60610.1_none_1d37a43bbfe1dc9c\msvcr110.dll
0.03
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
chrome.exe
PID
6232
Average Utilization (%)
0.29
Module
Average Module Utilization (%)
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\34.0.1847.116\chrome_child.dll
0.21
0.04
\SystemRoot\system32\ntoskrnl.exe
0.01
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
Apoint.exe
PID
4420
Average Utilization (%)
0.28
Module
Average Module Utilization (%)
\SystemRoot\system32\ntoskrnl.exe
0.14
\SystemRoot\System32\win32k.sys
0.06
\SystemRoot\system32\drivers\fltmgr.sys
0.02
CPU Utilization:Individual process with significant processor utilization.
This process is responsible for a significant portion of the total processor utilization recorded during the trace.
Process Name
explorer.exe
PID
4056
Average Utilization (%)
0.21
Module
Average Module Utilization (%)
\SystemRoot\System32\win32k.sys
0.09
\SystemRoot\system32\ntoskrnl.exe
0.07
\Device\HarddiskVolume3\Windows\winsxs\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_fa396087175ac9ac\comctl32.dll
0.00
Information
Platform Timer Resolution:Timer Request Stack
The stack of modules responsible for the lowest platform timer setting in this process.
Requested Period
10000
Requesting Process ID
2768
Requesting Process Path
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\chrome.exe
Calling Module Stack
\Device\HarddiskVolume3\Windows\SysWOW64\ntdll.dll
\Device\HarddiskVolume3\Windows\SysWOW64\winmm.dll
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\34.0.1847.116\chrome_child.dll
\Device\HarddiskVolume3\Windows\SysWOW64\kernel32.dll
\Device\HarddiskVolume3\Windows\SysWOW64\ntdll.dll
Platform Timer Resolution:Timer Request Stack
The stack of modules responsible for the lowest platform timer setting in this process.
Requested Period
10000
Requesting Process ID
7268
Requesting Process Path
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\chrome.exe
Calling Module Stack
\Device\HarddiskVolume3\Windows\SysWOW64\ntdll.dll
\Device\HarddiskVolume3\Windows\SysWOW64\winmm.dll
\Device\HarddiskVolume3\Windows\SysWOW64\d3d9.dll
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\34.0.1847.116\libglesv2.dll
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\34.0.1847.116\libegl.dll
\Device\HarddiskVolume3\Users\sony\AppData\Local\Google\Chrome\Application\34.0.1847.116\chrome_child.dll
Power Policy:Active Power Plan
The current power plan in use
Plan Name
OEM Balanced
Plan GUID
{381b4222-f694-41f0-9685-ff5bb260df2e}
Power Policy:Power Plan Personality (On Battery)
The personality of the current power plan when the system is on battery power.
Personality
Balanced
Power Policy:Video Quality (On Battery)
Enables Windows Media Player to optimize for quality or power savings when playing video.
Quality Mode
Balance Video Quality and Power Savings
Power Policy:Power Plan Personality (Plugged In)
The personality of the current power plan when the system is plugged in.
Personality
Balanced
Power Policy:Video quality (Plugged In)
Enables Windows Media Player to optimize for quality or power savings when playing video.
Quality Mode
Optimize for Video Quality
System Availability Requests:Analysis Success
Analysis was successful. No energy efficiency problems were found. No information was returned.
Battery:Battery Information
Battery ID
5950SONY Corp. VGP-BPS26
Manufacturer
SONY Corp.
Serial Number
5950
Chemistry
LION
Long Term
1
Design Capacity
45040
Last Full Charge
34940
Platform Power Management Capabilities:Supported Sleep States
Sleep states allow the computer to enter low-power modes after a period of inactivity. The S3 sleep state is the default sleep state for Windows platforms. The S3 sleep state consumes only enough power to preserve memory contents and allow the computer
to resume working quickly. Very few platforms support the S1 or S2 Sleep states.
S1 Sleep Supported
false
S2 Sleep Supported
false
S3 Sleep Supported
true
S4 Sleep Supported
true
Platform Power Management Capabilities:Adaptive Display Brightness is supported.
This computer enables Windows to automatically control the brightness of the integrated display.
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
0
Idle (C) State Count
3
Performance (P) State Count
14
Throttle (T) State Count
8
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
1
Idle (C) State Count
3
Performance (P) State Count
14
Throttle (T) State Count
8
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
2
Idle (C) State Count
3
Performance (P) State Count
14
Throttle (T) State Count
8
Platform Power Management Capabilities:Processor Power Management Capabilities
Effective processor power management enables the computer to automatically balance performance and energy consumption.
Group
0
Index
3
Idle (C) State Count
3
Performance (P) State Count
14
Throttle (T) State Count
8

Hi,
What is the symptom of the issue you encountered? The report shows there's a "known incompatibility with the hardware" and all "USB Suspend:USB Device not Entering Suspend" errors are caused by the prevention of Power Management (which is disabled due to
hardware issue) so have you made any hardware change rencently?
You can also manually check the Power Management setting, control panel\power options\chang plan settings\change advanced power settings, scroll down to PCI Express （check if you can set it to "Moderate Power Savings") and Process Power Management(should be
active).
Yolanda Zhu
TechNet Community Support

Can't update apps bought from different stores efficiently any more, why?

After the latest update of iTune 11, I found I can not any more update iOS Apps efficiently in iTunes. I have three different iTunes Store accounts for different country stores and they are all active.
Before this iTunes update, I had been able to update apps by store - which means when I am in a certain App Store, iTunes shows all apps need-to-update in that store only. I could press 'Update All" and sign-off so as to switch to another App Store while the updating running by itselfs and do the same in another store. This has been quite an effective way when there are more than 10 apps to update.
The new iTunes has a category "Update", which is good. However, it doesn't further categorize the apps by Store. The problem now is that I had 300+ updates waiting there and they belong to 3 stores. When I start updating with Store A, I can't sign-off (so no way to switch) until the apps update in Store A completes. Then it comes another big problem - when app No 22 to 26 were bought through Store B, 27 to 30 from Store A, 30-31 from Store C, etc, the udpate will stop when app 22 is detected and iTunes pops up a dialogue saying something like "this app was from another store, you have to switch to that store". If I don't switch, the udpate will not continue; if I do, it will stop the updating of app 20 and 21 (if haven't finished by then).
Once I switch, the same thing will repeat when app 27 is detected, then app 30, then app 32, then... then it is a total catastrophy.
On iOS devices, I don't have to switch to update apps from multiple stores, except when some apps were for certain store only, such as China Sore. Even the latter, I don't have to switch "BACK and FORTH".
Why can't iTunes on Mac do the same? At least, iTunes should continue to allow app update by Store and allow updating continues when the accounts is signed off.
Has anyone had the same problem? Is this a bug or not?

Just updated to iTunes 11 two days ago and am also seeing
the same behavior. The only way to find out if there is an update
to an app in iTunes is to enable the side bar, click on Apps. Then in
the lower right corner, click check for updates. If you are already logged
into the iTunes Store, I believe it will show the updates automatically.
But yes, it should show that an update is available in the store, as it used to.

How to share the music folder with multiple libraries efficiently?

Hi,
Me and my husband use the same computer, but have our own seperate user account on it. We have setup iTunes such that for each user account iTunes points to the same central music folder (on a seperate large disc). So effectively we are sharing the mp3/m4p/m4a files, but not the library.
So each user account has it's own iTunes library file with playlists, ratings etc. This is all fine, but if either of us adds something to the library (by importing a CD or by purchasing music), it is not automatically reflected in the other library.
The workaround we found for this is to drag the iTunes folder to the library every time you know that the other user made changes... It works, but it is not very efficient.
Any suggestions are welcome!
As a sidenote: for photo's we use Picasa from Google in a similar fashion (shared storage, different libraries) and here it works. When starting, Picasa automatically detects changes in the photo folder and updates the library accordingly.

You are doing the same thing I do at home. Except we just add the files that have been newly added rather than the whole library each time.
What we did is decide that all importing from CD will be with one account. This is just to make things easier keeping track of new adds. What we do is CDs that have been added are kept in a rack next to computer. If my wife wants the files all she has to do is add the files from the common storage drive then put the disc in storage.

I just bought a new computer. I know that I have several "libraries" on the old one. How can i transfer the data most efficiently?

I just purchased a new computer. My old computer has several "libraries" that have been saved. How do I know how to transfer the data most efficiently?

The progress for some games will transfer since some games synce progress to a cental server. For other games you will have to have the backup of the old iPod.
You can restore from backup or access the backup. See:
How to transfer game saves between iOS devices, without iTunes, and without jailbreaking | TUAW - The Unofficial Apple Weblog
If you have acces to the old iPod yu can make a backup by connecting the iPod to the computer and right click on the iPOd under Devices in iTunes and select Back Up. Then restore from that backup.

Advice needed: Efficient way to scan users

Hi all,
I wish to know the efficient way to scan users in Lighthouse. I need to write a workflow that checkout all the users and perform some updates. This workflow should run everyday at midnight.
I have created a scanner myself. Basically what It did are:
1. call FormUtils.getUsers method to return all users' name into a variable.
2. loop through this list and call a subprocess workflow to process every user. This subprocess checks out a user view, performs updates, and then checks in view.
This solution is not efficient at all since it causes my JVM to be Out of Memory. (1G RAM assigned to JVM with about 78,000 users)
Any advice is highly appreciated. Thank you.
Steve

Ok...I know understand what you are doing and why you need this.
A long, long, long time ago (back in 3.x days) the deferred task scanner was really bad. Its nightly scan would scan ALL users each time. This is fine when your client had 4k users...but not when it has 140k users.
Additionally, the "set deferred task" function had problems with two tasks with the same name "i.e. disable resource" since it used the name as the xml object name which can not be duplicated.
soooo, to beat this I rewrote the deferred task handler to allow me to do all of this. Part of this was to add a searchable field called 'nextTaskDate' on the user object. After each workflow this 'date" is updated so it is always correctly populated with the users "next deferred task date"
each night the scanner runs and querys all users with a nextTaskDate of today. This then gives us a result set that we can iterate over instead of having to list each user and search for tasks. It's a billion times faster.
Your best bet is to store the task date in miliseconds and make your query a "all users with next task date BEFORE now"...this way if the server is hosed you can execute tasks you may have missed.
We have an entire re-usable implmentation framework that we have patented (of which this code is a part) that answers most of these types of issues you are bringing up. It makes these implementations much much simpler, faster, scalable and maintainable.
this make sense?
Dana Reed
AegisUSA
Denver, CO 80211
[email protected]
773.412.3782
"Now hiring best-in-class IdM architects. Inquire via emai"

My Mac Book Pro has slowed to less than a crawl (possibly from a worm or virus). How do I make sure it's running at peak efficiency before I complain to comcast

My Mac Book Pro has slowed to less than a crawl (possibly from a worm or virus). How do I make sure it's running at peak efficiency before I complain to comcast

Please answer as many of the following questions as you can. You may already have answered some of them; in that case, there's no need to repeat the answers.
Restart the router and the broadband device, if they're separate. Any change?
Run Software Update and install all available updates for OS X or the computer's firmware. Any change?
If possible, connect to the router with an Ethernet cable and turn off Wi-Fi. Any difference?
Are any other devices on the network, and if so, are they the same?
If you can connect to more than one network, are they all the same?
Are all network applications affected, or only some? If only some, which ones?
Is networking always the same, or is the problem intermittent?
Disconnect all other devices from the network. Any change?
If you're running a MacBook with the lid closed, open the lid. Any difference?
Start up in safe mode and test. Any difference?
Start up in Recovery mode. From the OS X Utilities screen, select Get Help Online. A clean copy of Safari will launch. No plugins, such as Flash, will be available. Any difference?
If possible, turn off Bluetooth and disconnect any USB 3 devices. Any difference?

Does anyone have a suggestion for an alternative to iCal that will interface with the Cloud? I find iCal to be poorly designed and not very efficient.

Does anyone have a suggestion for an alternative to iCal that will interface with the Cloud so it works on the iPhone and the Macbook? I find iCal to be poorly designed and not very efficient. I waste a lot of time entering information because you can't go to a specific day and enter information, nor can you navigate between months and add information on a specific date by clicking on the date. You can't easily scroll month-to-month and once you do by scrolling through nine months to get to where you want to be, you cannot enter information by clicking on a specific day in the month and entering information. I just called Apple and they verified that this is the way it works. You cannot go to a date and enter information, you keep getting thrown back to today and then you have to go into the calendar and change it manually on the screen. It is just not efficient.

APC, CyberPower are reliable.
Look for 1500VA. As example:
APC
http://www.amazon.co.uk/APC-Back-UPS-Pro-1500-Connector/dp/B0041MP81Y/
Cyperpower:
http://www.amazon.co.uk/Dell-CyberPower-Intelligent-LCD-1500VA/dp/B005DL5L50/

Efficiency

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