Updating internal table in loop

Hi All,
UID GRP1 GRP2 UPD1
001     1         1     1
001    1          2     2
001    1          3     3
001    2          4     1
002    1         3      1
002    1         2      2
003    1         4      1
004    1        1      1
004    2        2      1
004    2        5       2
I have a requirement where I have an internal table it_data with four fields UID, GRP1, GRP2 and UPD1
so now the requirement is based on UID and GRP1 the UPD1 field will be updated, so for same UID and for the same GRP1 all the UPD1 will be incremented like 1, 2, 3 and so on..
so in the above example, for UID 001 and GRP1 1 the UPD1 is updated as 1
then for the same UID and the same GRP 1 i.e. 1 the UPD1 will be incremented to 2 and so on.
then for the same UID but for the different/new GRP1 the UPD field will start from 1 again and so on.
I am not able to write the loop statement for this req.

You may try the following code. I cannot check it at the moment, but you should catch the idea.
FIELD-SYMBOLS <l_fs_data> LIKE LINE OF it_data.
DATA:
 l_index TYPE i,
 l_uid LIKE it_data-uid,
 l_grp LIKE it_data-grp1.
SORT it_data BY uid grp1.
LOOP AT it_data ASSIGNING <l_fs_data>.
 IF l_uid IS INITIAL OR l_grp IS INITIAL
 OR l_uid NE <l_fs_data>-uid OR l_grp NE <l_fs_data>-grp1.
 l_index = 1.
 ELSE.
 ADD 1 TO l_index.
 ENDIF.
 l_uid = <l_fs_data>-uid.
 l_grp = <l_fs_data>-grp1.
 <l_fs_data>-upd1 = l_index.
ENDLOOP.

Similar Messages

Is it possible to update internal table from database table

Hello All:
I know how to update database table from internal table in one shot (batch) but is the reverse possible? Can I update some fields in an internal table from a database table in one shot (without looping) because my internal table is huge? Could you please provide me any ideas how to acheive something like this? Thanks in advance and answers will be rewarded.
thanks.
Mithun

Hello my friend,
You can do it MAYBE , i think you can reverse the update doing a ROLLBACK, but only after you update....not after the program finishes..
To update some fields at once use:
UPDATE DBTABLE FROM TABLE IT_TABLE
Hope this helps!!
Gabriel

Updating internal table with CSV file

I have a flat file as below:
aaaa, bbbb, asdc, dfgfhg, sdfsg, sdf, sdf, sdf, dfg, sdf, sgf, drgftfgh, sgf, drgtf, swftgd, sgf,
'sjhdfjhf','2003-10-11 07:52:37','167','alkjd',NULL,NULL,NULL,NULL,NULL,'MX1',NULL,NULL,'dkjffdj ,',NULL,NULL,NULL,'1',NULL,NULL,'AR, dfkj ',
Where we can see it is separated by commas.I want to upload this one into onr internal table.I used GUI_UPLOAD and gave the logic as folows:
TYPES: BEGIN OF ttab,
rec(1000) TYPE c,
END OF ttab.
TYPES: BEGIN OF tdat,
aaaa type char10
bbbb type char10,
asdc type char10,
dfgfhg type char10,
sdfsg type char10,
sdf type char10,
sdf type char10,
sdf type char10,
dfg   type char10,
sdf    type char10,
sgf type char10,
drgftfgh type char10,
sgf type char10,
drgtf type char10,
swftgd type char10,
sgf type char10,
END OF tdat.
DATA: itab TYPE TABLE OF ttab WITH HEADER LINE.
DATA: idat TYPE TABLE OF tdat WITH HEADER LINE.
DATA: file_str TYPE string.
PARAMETERS: p_file TYPE localfile.
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_file.
CALL FUNCTION 'KD_GET_FILENAME_ON_F4'
EXPORTING
static = 'X'
CHANGING
file_name = p_file.
START-OF-SELECTION.
file_str = p_file.
CALL FUNCTION 'GUI_UPLOAD'
EXPORTING
filename = file_str
TABLES
data_tab = itab
EXCEPTIONS
file_open_error = 1
file_read_error = 2
no_batch = 3
gui_refuse_filetransfer = 4
invalid_type = 5
no_authority = 6
unknown_error = 7
bad_data_format = 8
header_not_allowed = 9
separator_not_allowed = 10
header_too_long = 11
unknown_dp_error = 12
access_denied = 13
dp_out_of_memory = 14
disk_full = 15
dp_timeout = 16
OTHERS = 17.
LOOP AT itab.
CLEAR idat.
SPLIT itab-rec AT ',' INTO idat-aaaa
idat-bbbb ,
idat-asdc ,
idat-dfgfhg ,
idat-sdfsg ,
idat-sdf ,
idat-sdf ,
idat-sdf ,
idat-dfg   ,
idat-sdf    ,
idat-sgf ,
idat-drgftfgh ,
idat-sgf ,
idat-drgtf ,
idat-swftgd ,
idat-sgf ,
APPEND idat.
ENDLOOP.
Now the issue is when I use the statement SPLIT itab-rec AT ',' this is not updating the table idat properly.Because the flat file contains the value as 'dkjffdj ,', too.
Can anyone give me some solution to update the internal table.

hI
or you delete ' from csv file before uploading it or after uploading it, in this last case u can use statament replace:
REPLACE ''' WITH SPACE INTO ITAB-FIELD.
Max

ALV GRID update internal table

Hi all,
I have an internal table display in a ALV GRID. Only one column is editable. When I change the field value, ALV GRID display the change, but when I click on refresh return the old value.
I've checked in DEBUG mode and when I click on refresh (in the PAI module), the internal table haven't data modified.
For example: the field qta have value 15. I change it in 18 and then press Refresh. In debug, the field qta still have the value 15.
What I have to do?

Hi
The Example prg is using Classes, then you need to use the same approach in the way i mentioned below...
You need to Update the ITAB with the Modifeid values.
*       CLASS lcl_event_handler DEFINITION
CLASS LCL_EVENT_HANDLER DEFINITION .
PUBLIC SECTION .
    METHODS:
**Handler to Check the Data Change
    HANDLE_DATA_CHANGED FOR EVENT DATA_CHANGED
                         OF CL_GUI_ALV_GRID
                         IMPORTING ER_DATA_CHANGED
                                   E_ONF4
                                   E_ONF4_BEFORE
                                   E_ONF4_AFTER.
ENDCLASS.                    "lcl_event_handler
DEFINITION
**Handle Data Change
METHOD HANDLE_DATA_CHANGED.
    DATA: X_CHANGE TYPE LVC_S_MODI,
          X_FINAL TYPE T_FINAL,
          X_OCRC TYPE ZSD_OC_HOLD,
          L_FLAG.
    LOOP AT ER_DATA_CHANGED->MT_GOOD_CELLS INTO X_CHANGE.
      IF X_CHANGE-FIELDNAME = 'ZZOCHOLDRC'.
        READ TABLE IT_FINAL INTO X_FINAL INDEX X_CHANGE-ROW_ID.
        IF SY-SUBRC = 0.
          READ TABLE IT_OCRC INTO X_OCRC WITH KEY
                                         ZZOCHOLDRC = X_CHANGE-VALUE
                                        TRANSPORTING ZZRCDESC.
          IF SY-SUBRC = 0.
            X_FINAL-ZZRCDESC = X_OCRC-ZZRCDESC.
            MODIFY IT_FINAL FROM X_FINAL INDEX X_CHANGE-ROW_ID
                                         TRANSPORTING ZZRCDESC.
            L_FLAG = 'X'.
          ENDIF.
        ENDIF.
      ENDIF.
      IF X_CHANGE-FIELDNAME = 'ZZPROMDT'.
        READ TABLE IT_FINAL INTO X_FINAL INDEX X_CHANGE-ROW_ID.
        IF SY-SUBRC = 0.
          X_FINAL-ZZPROMDT = X_CHANGE-VALUE.
          MODIFY IT_FINAL FROM X_FINAL INDEX X_CHANGE-ROW_ID
                                       TRANSPORTING ZZPROMDT.
          L_FLAG = 'X'.
        ENDIF.
      ENDIF.
    ENDLOOP.
    IF L_FLAG = 'X'.
      CLEAR V_DATA_CHANGE.
      V_DATA_CHANGE = 'X'.
    ENDIF.
ENDMETHOD.                    "data_changed
**you need to SET the HANDLER after the method first display.
CREATE OBJECT G_HANDLER.
SET HANDLER G_HANDLER->HANDLE_DATA_CHANGED FOR G_GRID.
try this
vijay

Updating internal table in dynamic way

Hi,
I want to update one internal table dynamically.I have two internal table.
One internal table has the records which are field names of the 2nd internal table.
suppose:
Itab1 is as follows:
F1 F2
aaa bbb
Itab2 as follows:
aaa bbb
This means the ITAB1 records are the fields of ITB1.Now I want to update ITAB2 when I found ITAB1-F1 is the field of ITAB2 dynamically.
Can anyone give some code hint to do so.

you can use below code for this. I write it in notepad some changes may be necessary.
data: lv_c(30).
field-symbols: <f1> type any.
loop at itab1.
concatenate 'itab2' itab1-fieldname into lv_c.
assign (lv_c) to <f1>.
if assign successful this means this field exists
if sy-subrc = 0
move value to <f1>.
*modify itab2.
endif.
endloop.
Edited by: Gungor Ozcelebi on Jul 1, 2009 3:37 PM

Multiple checkbox selection in ALV and updating internal table

Dear Expert,
Can anyone tell me how to handle the multiple checkbox selection in ALV Grid report and then updating the internal table.
I tried the option but it works only when i select only 1 row in ALV.
 DO L_LINES TIMES.
 read table icoas index rs_selfield-tabindex.
 if sy-subrc = 0.
 ICOAS-NOCHK = 'X'.
 modify ICOAS INDEX rs_selfield-tabindex TRANSPORTING NOCHK.
 ENDIF.
 ENDDO.
Requires help....
Regards & Thanx,
Bhupathi.

Hi,
Use this method to capture the check box event. Write this once you create your grid using CREATE OBJECT grid1.
DATA: GRID1 TYPE REF TO CL_GUI_ALV_GRID,
CALL METHOD grid1->register_edit_event
EXPORTING
 i_event_id = CL_GUI_ALV_GRID=>MC_EVT_MODIFIED
EXCEPTIONS
 ERROR = 1
 others = 2
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
LOOP AT T_GRIDDETAILS INTO WA_GRIDDETAILS.
 IF WA_GRIDDETAILS-CHECKBOX = 'X'.
 "Do your operation
 ENDIF.
 CLEAR WA_GRIDDETAILS.
ENDLOOP.

Update internal table data from table control

Hi GURUS,
I need help regarding one of my requirement.
I need to display data from the internal table on the screen and when the user selects a record/multiple records from screen and clicks on approve button i need to update one of the field from N to Y in the corresponding Ztable. Once the record is updated from Ztable , that should no longer be visible for the user on the screen.
I am using table control wizard to display data. I am able to update the Ztable, but that record is not refreshing from the user screen. Any suggestions would be approved.
Also please let me know if table control is the best way to do this/ alv grid control??

hi
REFRESH CONTROL Control-Name FROM SCREEN '0100' -> use this command to refresh the table control
to know more, read into
https://forums.sdn.sap.com/click.jspa?searchID=2934287&messageID=673474
Re: URGENT HELP REQ IN TABLE CONTROL WIZARD
if helpful, reward
Sathish. R

Question in ABAP syntax, read & insert data from internal table, while loop

Hi, SDN Fellow.
I am from Java background and learnt ABAP, I don't usually write much ABAP code.
I am trying to implement the following logic in a RFC now.
I have one z-custom database table, the structure as the following:
It has two columns, with these sample data.
Says datable table is ZEMPMGRTAB.
EmployeeID,ManagerID
user10,user1
user9,user1
user8,user1
user7,user2
user6,user2
user5,user2
user4,user2
user2,user1
The logic is this:
I have a input parameter, userid. I am using this parameter to have a select statement to query the record into export table,EXPTAB 'LIKE' table ZEMPMGRTAB.
SELECT * FROM ZEMPMGRTAB
into table EXPTAB
   WHERE EMPLOYEEID = USERID.
Say, my parameter value, USERID ='USER4'.
Referring to the sample data above, I can get the record of this in my EXPTAB,
EmployeeID,ManagerID
user4,user2
Now, I want to iterately use the EXPTABLE-ManagerID
as the USERID input in SELECT statement, until it has no return result. Then, insert the new records in
EXPTAB.
In above new loop case, we will get this table content in EXPTAB,
EmployeeID,ManagerID
user4,user2
user2,user1
I kind of think of the pseudocode logic as below:
(These may not be a valid ABAP code, so I need help to convert/correct them)
DATA:
IWA TYEP ZZEMPMGRTAB,
ITAB
HASHED TABLE OF ZZEMPMGRTAB
WITH UNIQUE KEY EMPLOYEEID.
SELECT * FROM ZEMPMGRTAB
into table ITAB
   WHERE EMPLOYEEID = USERID.
*Question 1: I cannot insert a internal table to export table, it is *incompatible type, what is the alternative way fo this?
*Question 2: How can I access thedata of the internal table like this,ITAB-MANAGERID? As if I can, I would do this:
* IWA-EMPLOYEEE = ITAB-EMPLOYEEID. IWA-MANAGERID = IWA-MANAGERID. INSERT IWA INTO TABLE EXPTAB.
* Question 3: Is the 'NE NULL' - 'not equal to NULL' is right syntax?
IF ITAB NE NULL.
INSERT ITAB INTO EXPTAB.
ENDIF
* Question 4: Is my WHILE loop setup right here? And are the syntax right?
WHILE ITAB NE NULL.
SELECT * FROM ZEMPMGRTAB
into table ITAB
   WHERE EMPLOYEEID = ITAB-MANAGERID.
IF ITAB NE NULL.
INSERT ITAB INTO EXPTAB.
ENDIF
REFRESH ITAB.
ENDWHILE.
Assume all the syntax and logic are right, I should get this result:
EmployeeID,ManagerID
user4,user2
user2,user1
If I have a new entry in datable table,ZEMPMGRTAB like this:
user1,user0
My pseudocode logic will get this result:
EmployeeID,ManagerID
user4,user2
user2,user1
user1,user0
I truly appreciate if you can help me to validate the above syntax and pseudocode logic.
Thanks in advance.
KC

Hi,
FUNCTION ZGETSOMEINFO3.
*"*"Local Interface:
*" IMPORTING
*"     VALUE(USERID) TYPE AWTXT
*"     VALUE(FMTYPEID) TYPE AWTXT
*" EXPORTING
*"     VALUE(RETURN) TYPE BAPIRETURN
*" TABLES
*"      APPROVERT STRUCTURE ZTAB_FMAPPROVER
*"      ACTOWNERT STRUCTURE ZTAB_FMACTOWNER
DATA: T_RESULT TYPE STANDARD TABLE OF ZTAB_FMAPPROVER.
**Question 1: For this line, I got an error says "Program ''USERID" *not found. Is the syntax right, as the USERID is a parameter for the function.
perform add_line(USERID).
ENDFUNCTION.
form add_line using i_user type ZTAB_FMAPPROVER.EMPLOYEEID
                    changing T_RESULT TYPE ZTAB_FMAPPROVER.
data: ls_row type ZTAB_FMAPPROVER.
* Get record for i_user
select single * into ls_row from ZTAB_FMAPPROVER
where EmployeeID = i_user.
if sy-subrc NE 0.
* Do nothing, there is not manager for this employee
else.
* Store result
QUESTION 2: I am still got stuck on this line of code. It still *says that "T_RESULT" is not an internal table "OCCURS n" *specification is missing. I thought the line: "T_RESULT TYPE *ZTAB_FMAPPROVER" means declare internal table, T_RESULT as type of ZTAB_FMAPPROVER". Am I understand it wrongly?
append ls_row to t_result.
* Call recursion
perform add_line using ls_row-ManagerID
                          changing t_result.
endif.
endform.
Thanks,
KC

Grid with classes not updating Internal Table

Hi everyone
I´m developing a Grid with classes.
The first field in the Grid is a checkbox, I want it to response like a User action when I select or deselect it, but it´s not working. The Internal Table data isn´t updating the info in this field.
Can someone give me some light please??
Also I´m thinking in Add a Button like a Submit, so when the user clicks it I can get the last data captured in all fileds. Do you think it may be better??
Thanks in advanced.
Emmanuel

Welcode to SCN
Please check this link
a®

Update internal table.

Hi Gurus.
I have a program MODULE POOL and he call ALV OO.
PROCESS BEFORE OUTPUT.
   MODULE status_9400.
   MODULE inicializa_dados_9400.
   MODULE set_alv_atributos_9400.
   MODULE inicia_objetos_9400.
   MODULE show_alv_9400.
PROCESS AFTER INPUT.
   MODULE user_command_9400.
   MODULE exit_command_9400 AT EXIT-COMMAND.
*&      Module SHOW_ALV_9400 OUTPUT
MODULE show_alv_9400 OUTPUT.
DATA: e_posicao TYPE lvc_s_stbl.
*- Gerando o objeto do ALV
IF vg_grid8 IS INITIAL.
    CREATE OBJECT vg_grid8
      EXPORTING
        i_parent      = vg_contain8
        i_appl_events = c_x.
    CALL METHOD vg_grid8->set_table_for_first_display
      EXPORTING
        is_variant           = wa_variante
        i_save               = c_a
*        i_default            = c_x
        is_layout            = wa_layoutcl
        is_print             = wa_printcl
        i_buffer_active      = space
        it_toolbar_excluding = t_excludingcl
      CHANGING
        it_fieldcatalog      = t_fieldcatcl[]
        it_outtab            = pt_alv_itm_ata_ex
        it_sort              = t_sortcl.
    IF sy-subrc NE 0.
*-    ERRO na execução do ALV
      MESSAGE e007(zbc001).
    ENDIF.
    CLEAR t_f4.
    PERFORM f_det_fldswtf4_8 USING 'ZITEM_ATA' CHANGING t_f4.
    PERFORM f_set_events_ata_ex.
ENDIF.
vg_grid8->set_ready_for_input( ).
e_posicao-row = c_x.
e_posicao-col = c_x.
CALL METHOD vg_grid8->refresh_table_display
    EXPORTING
      is_stable = e_posicao.
CALL METHOD vg_grid8->register_edit_event
    EXPORTING
      i_event_id = cl_gui_alv_grid=>mc_evt_modified.
endmodule.
My problem Is :When I insert data in field of screen and click in OK in PAI module the filed appears empity in internal table ,but I insert data in Screen .
How Can I show the data insert in screen , in my internal table Too.?
Thanks Gurus.

Try registering the events before calling set_table_for_first_display and add this after calling the ALV:
SET HANDLER g_application->handle_tf_user_command FOR
              tf_grid.
SET HANDLER g_application->handle_tf_data_changed FOR
              tf_grid.
SET HANDLER g_application->handle_tf_data_changed_finish FOR
              tf_grid.
I know, ALVs can make you nuts...

Update value of internal table in table control

hi friends,
i have two text field and a button in a screen.if give the value and click the button it should get updated in the table control which is in the next screen.plz
help me with some sample coding.

Hi,
As I can understand, you want
1. To enter details in two fields. You want to enter data there and then press an enter Button.
2. This two fields are part of table control in the next screen and it has some data present there. You want to add data of this two fields in the Internal table.
THere are few options.
1. Define a Global internal Table.
2. Fetch Data in that internal Table in your 1st Screen Say 100 with the 2 text fields.
3. On click of the button. In PAI append data of the fields in the Global Internal Table.
4. Display internal table by looping on it in the next screen say 200.
Hope this is the answer you are looking for.
Try to solve, if you can't then send me message or email.
Cheers.
Darshan
** Please reward points if this helps u. It motivates us to write more answer and put more efforts.

Im trying to update db table in user exit, with the internal table

Im trying to update db table in user exit, with the internal table
my scenario:
loop at itekpo.
updating itekpo -
> at the end of user exit the db table ekpo have to be updated
endloop.
Im updating internal table, using
MODIFY itekpo TRANSPORTING INCO1 INCO2 WHERE ebeln = itekpo-ebeln
where itekpo is internal table, but it is not updating the db table 'ekpo'.
i also tried updating ekpo directly !
Thanks in advance

Hi,
you can search in the forum itself,
Try this link for instance
https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=tocreateaBADI&adv=false&sortby=cm_rnd_rankvalue
You can find a code for finding BADI as a report with the following Transaction
finding badis
How to find BADIs
Reward if helpful
Regards
Byju

Internal table updation

Hi,
Internal table declaration
data: begin of test occurs 0,
 salesorg type vkorg,
 palnt type werks,
 end of test.
Internal table Data
Sales org Plant
XXX PPP
YYY OOO
ZZZ III
Now the plant of all records should be changed to 'PPP' without looping the test table.
Need syntax for changing plant in all records to PPP without using loop statement.
Regards,
Sreedevi P

Hi Sreedevi,
 I don't think you can do that modification of the only one field without looping the internal table.
Looping the internal table is the best alternative.
Loop at test.
test-plant = 'PPP'.
Modify test transporting plant.
Endloop.
Reward if helpful.
Regards,
Tushar
Message was edited by: Tushar Marshall Dass

To eliminate the duplicate entries while looping into final internal table

Hi friends,
IAam facing the follwoing problem.
Get Shipment for the Delivery number
      SELECT tknum
             vbeln
             INTO TABLE lt_vttp
             FROM vttp
             FOR ALL ENTRIES IN lt_vbfa
             WHERE vbeln = lt_vbfa-vbelv.
    IF sy-subrc EQ 0.
      SELECT vbeln kunnr
             FROM likp
             INTO TABLE lt_likp
             FOR ALL ENTRIES IN lt_vttp
             WHERE vbeln = lt_vttp-vbeln.
endif.
now iam my internal table lt_vttp i have following values
   shipment             delivery
      1000                  2000
      1000                 2001
in my internal table lt_likp i have the follwoing values
      delivery              shipto
       2000                  ABC
       2001                  ABC
now iam looping those values in a final internal table.
LOOP AT lt_likp INTO ls_likp.
    CHECK sy-subrc EQ 0.
     READ TABLE lt_vttp INTO ls_vttp WITH KEY vbeln = ls_likp-vbeln BINARY SEARCH.
    CHECK sy-subrc EQ 0.
         SELECT SINGLE * FROM vttk INTO ls_vttk
                WHERE tknum = ls_vttp-tknum.
              CHECK sy-subrc EQ 0.
            APPEND ls_vttk TO lt_vttk.
   endloop.
Now my problem is if the shipment is same and the shipto is same then need to eliminate the duplicate records.
        in internal table iam getting 2records with same shipment and shipto combination.
       but instead if both the shipment and shipto are same then i should elimate the duplicate entries.
and for the same shipment if i have differnt shipto then i neeed those 2 value.
can any body tell me how can i get that.
Regards
Priyanka.

Hi Priyanka,
In your code you are using seelct statement inside the loop which will affect the performance.
So, declare a another internal table which contains your both shipment and shipto elements with other required fields, say the name is lt_new.
sort lt_new by shipment shipto.
delete adjacent duplicates from lt_new comparing shipment shipto.
"then use for all entries to choose values from VTTK.
Hope this helps you.
Regards,
Manoj Kumar P

Best way to update custom table

Hello experts,
Iu2019m writing a report program and after pulling data from a custom table Iu2019m modifying certain fields within internal table and then eventually update custom table. The way Iu2019m updating custom table is working fine. However Iu2019m concern about performance issues because Iu2019m doing update on custom table within loop.
Here is my code for reference.
*& Form update_contracts
 text
--> p1 text
<-- p2 text
FORM update_contracts .
Update record in an internal table first
loop at izsc_compliance into wa_zsc_compliance..
 wa_zsc_compliance-zapproval = c_accepted.
 wa_zsc_compliance-CHANGED_DT = sy-datum.
 wa_zsc_compliance-CHANGED_TM = sy-uzeit.
 wa_zsc_compliance-CHANGED_BY = sy-uname.
 modify izsc_compliance from wa_zsc_compliance index sy-tabix.
 write:/ sy-tabix, wa_zsc_compliance-vbeln_new, wa_zsc_compliance-zapproval.
 if p_test is initial.
 move wa_zsc_compliance to zsc_compliance.
 update zsc_compliance.
 endif..
endloop.
Write records to database
if p_test = 'X'.
 skip.
 write:/ 'Test mode'.
endif.
ENDFORM. " update_contracts
Iu2019m not certain if there is any better way by not doing update within loop and update custom table outside this loop.
Many thanks in advance.

Hi,
Yes, there is a better way to update the custom table. That will be more performance oriented and will be a much cleaner approach. As, I am not much aware of the custom table structure which you have in your program, the best way that I can suggest is to remove the update statement from that check. I guess you are checking against the mode - test or production. Once you have done the check, put the selected entries in an internal table which is same as database table. And then in a single command - a single array operation as it is commonly called, you can update the custom table.
Have a look at the following link
[Overwriting Several Lines Using an Internal Table|http://help.sap.com/saphelp_bw33/helpdata/en/fc/eb3a94358411d1829f0000e829fbfe/content.htm]
[Inserting or Changing Lines|http://help.sap.com/saphelp_bw33/helpdata/en/fc/eb3ac8358411d1829f0000e829fbfe/content.htm]
You can also scan the forum for multiple links and references and sample examples.
Hope this will help. The above approach will be much more performance oriented and will help to optimize. Also, check where exactly you are providing the locking feature if at applicable in your business functionality.
Regards,
Samantak.

Updating internal table in loop

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