Table with Audit fields

Hi,
I am designing a schema where in all the data tables will have created_by, created_on, modified_by and modified_on columns to find what & when changes made and who made changes to the records of the tables for audit purpose. These audit columns are rarely used in queries.
Other than the above said audit columns, these tables will have application data columns on an average of 20-25 max.
Will these additional audit columns impact the DML performance on the data tables?
If it is, will it be a good idea creating separate audit table with all these audit columns having one-to-one relationship with the actual data tables? Will this separation really reduce the load on actual data tables and improve the DML performance?
In case of creating separate audit tables, is it advisable creating these audit tables in separate schema? So that, the audit tables and related indexes will be created on a different data file and hence archiving, backup and recovery of actual data tables will be easy.
To update these audit columns on separate tables, using of insert, update & delete triggers is advisable?
Please advice.
Thanks in advance
Sathish

user6092922 wrote:
Hi,
I am designing a schema where in all the data tables will have created_by, created_on, modified_by and modified_on columns to find what & when changes made and who made changes to the records of the tables for audit purpose. These audit columns are rarely used in queries.
Other than the above said audit columns, these tables will have application data columns on an average of 20-25 max.
Will these additional audit columns impact the DML performance on the data tables?
If it is, will it be a good idea creating separate audit table with all these audit columns having one-to-one relationship with the actual data tables? Will this separation really reduce the load on actual data tables and improve the DML performance?
In case of creating separate audit tables, is it advisable creating these audit tables in separate schema? So that, the audit tables and related indexes will be created on a different data file and hence archiving, backup and recovery of actual data tables will be easy.
To update these audit columns on separate tables, using of insert, update & delete triggers is advisable?
Welcome to OTN forums!
What's the db version in 4 digits and o/s information?
Why you are reinventing the wheel by adding such columns in the table? Why not to take advantage of the auditing facility which is already there in the database?
Aman....

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Hello Experts,
I have a database table with following fields
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MENG1
MENG2
MENG3
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MSD50004     A      1000005     5.30    2.30    5.25
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MODIFY dbtab from itab.
It results me , entries in internal table are inserted into db table.
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Is there any statement which updates the key field? and if no fields in db table then insert it?
Regards
RH

hi,
u cannot update akey field.u can update only non key fields by using key field as a selection criteria.For example if u go to sm30 if u enter any table for inserting values, the key field will always be greyed out it is not succumbed to chnges.but u can insert value into ,if ur inserting and in the insert staemnet if u have key field which is already present in the table it will return sy-subrc = 4 otherwise it will insert the record and return 0.
eg for update :
UPDATE zdm_wtyprof SET upload_status = 'S'
                         WHERE spart = wa_upd-spart.
here spart is the key field and it will update the status field in the table as S.
if updated succesfully it will return 0.
SIMILARLY U CAN USE select.

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HI
I am looking for a way in order to create a table during runtime. The problem is that the field names of the table are provided in another table.
TO illustrate the case at hand, an example:
The initial table contains the fields
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d00587 - first_name    - Jon
d00587 - last_name     - Smith
d00587 - age           - 48
d00127 - first_name    - Jack
d00127 - last_name     - Daniels
d00127 - position      - Manager
Now I need to create a table per User that looks as follows:
for user d00587
first_name - last_name - age
**Values
Jon         - Smith      - 48
for user d00127
first_name - last_name - positioin
Jack        - Daniels    - Manager
I split the initial table by sorting it according to userID and then looping into an itab with an AT END OF userid, thus I receive the table per user:
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UserID - attribut_name - attribute_value
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d00587 - first_name    - Jon
d00587 - last_name     - Smith
d00587 - age           - 48
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Does anybody have an idea or example code for this?
Thanks a lot for your help,
Kind regards,
Mingolo

Hello Minima
Here is some sample coding:
DATA:
gt_fcat type lvc_t_fcat,
gdo_data TYPE REF TO data.
FIELD-SYMBOLS:
<gt_itab> TYPE table.
CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
EXPORTING
*     I_BUFFER_ACTIVE              =
    i_structure_name             = 'MARA'
*     I_CLIENT_NEVER_DISPLAY       = 'X'
*     I_BYPASSING_BUFFER           =
CHANGING
    ct_fieldcat                  = gt_fcat
EXCEPTIONS
    inconsistent_interface       = 1
    program_error                = 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.
CALL METHOD cl_alv_table_create=>create_dynamic_table
EXPORTING
*      I_STYLE_TABLE             =
    it_fieldcatalog           = gt_fcat
IMPORTING
    ep_table                  = gdo_data
*      E_STYLE_FNAME             =
EXCEPTIONS
    generate_subpool_dir_full = 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.
ASSIGN gdo_data->* TO <gt_itab>.
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In OWB I need to update the target table with same field for match/update

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set irf = 0
where irf = 1
and process_id = 'TEST'
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table name is temp
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field2 varchar2(10)
field3 date
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0,'TEST',05/29/2009
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0,'TEST1',03/01/2009
1,'TEST1',03/01/2009
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Update temp
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9,'TEST',05/29/2009
0,'TEST1',03/01/2009
1,'TEST1',03/01/2009
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1,'TEST',05/29/2009
1,'TEST',05/29/2009
0,'TEST1',03/01/2009
1,'TEST1',03/01/2009

Use of selection table with 4 fields

Hi everyone
Can someone please explain to me what is the use of the seltab 4 fields, how they are used and provide an example, cos Im kinda struggling understanding them...
Thanks in advance
Adam

Hi,
Explicity there is a selection table for select-options that is seltab and it have sign, low, high, and option.
Actually these values are also available in ranges.
Just to explain you go through this info.
What are the difference between SELECT-OPTIONS & RANGES?
Here both SELECT-OPTIONS & RANGES works for the same purpose. They both are used for the range selection from selection screen. The main diff. between them is, while we use SELECT-OPTIONS system implicitly creates the select options internal table which contains the fields of SIGN,OPTION,LOW & HIGH. But in case of RANGES, this internal table should be defined explicitly.
Eg. to SELECT-OPTIONS :
REPORT YARSELECT.
TABLES YTXLFA1.
SELECT-OPTIONS : VENDOR FOR YTXLFA1-LIFNR.
INITIALIZATION.
VENDOR-LOW = 1000. " It specifies the range starting value.
VENDOR-HIGH = 2000. " It specifies the range ending value.
VENDOR-OPTION = 'BT'. " specifies ranges value is in between.
VENDOR-SIGN = 'I'. "specifies both inclussive.
APPEND VENDOR.
SELECT LIFNR LAND1 NAME1 FROM LFA1 INTO TABLE ITAB
WHERE LIFNR IN VENDOR.
Eg. to RANGES:
REPORT YARRANGE.
TABLES YTXLFA1.
RANGES: VENDOR FOR YTXFLA1-LIFNR.
SELECT LIFNR LAND1 NAME1 FROM LFA1 INTO TABLE ITAB
WHERE LIFNR IN VENDOR.
Here with RANGES user has to design an internal table with fields -
SIGN,OPTION,LOW and HIGH EXPLICITLY.
>
Example:
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Should the user fill in 'ABFI' in BUKRS on the selection screen, BUKRS will look like this:
IEQABFI
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begin of bukrs occurs 0,
SIGN(1) type c,
OPTION(2) type c,
LOW like bukrs,
HIGH like bukrs,
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Now, when you create the following range, it will have the exact same fields set inside its table:
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Some tips:
Sign is always I (for Include) or E (for Exclude)
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BT (Between))
CP (Contain Pattern)
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ranges: bukrs for zstock-bukrs.
bukrs-sign = 'E'. "Exclude
bukrs-option = 'CP'. "Pattern
bukrs-low = 'AB*'. "Low Value
bukrs-high = ''. "High Value
append bukrs.
Always remember to APPEND your range when you fill it, as the WHERE clause checks against the lines of the range table, not against the header line.
Hope this explains it well enough.
>
What does SIGN "I" & "E" mean?
The "I" stands for Include, and the "E" for Exclude.
The easiest way to learn how the range selections work is, create the following dummy program:
report dummy.
tables: mara.
select-options: matnr for mara-matnr.
start-of-selection.
loop at matnr.
write: / matnr-sign,
matnr-option,
matnr-low,
matnr-high.
endloop.
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Hope this info helps.
Regards,
Kumar.

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Hi all,
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TABLES
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GS_COMPONENTS-TYPE ?= CL_ABAP_STRUCTDESCR=>DESCRIBE_BY_NAME( GT_FIELDS-ROLLNAME ).
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GO_LINE_TYPE = CL_ABAP_STRUCTDESCR=>CREATE( GT_COMPONENTS ).
GO_TABLE_DESC = CL_ABAP_TABLEDESCR=>CREATE( GO_LINE_TYPE ).
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ASSIGN: GR_TAB->* TO <GT_TABLE>.
SELECT * FROM (P_TAB) APPENDING CORRESPONDING FIELDS OF TABLE <GT_TABLE>.
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NEW-LINE.
DO.
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How to modify field symbol of type Index Table with other field symbol of type any.

Hello Experts,
How is it possible to update an filed symbol table of type Index table with other filed symbol table.
e.g.
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Field symbol : <lt_table2> type Index table.
after some code...at run time these table filled like following.
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how I can achieve this.
Regards,
Chetan.

Hi,
did you try ASSIGN COMPONENT xx OF STRUCTURE <IT_TABEL1> TO <IT_TABLE2>.
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or maybe, if you have the description with a field catalog or other, that will be easier ..
regards
Fred

Joining tables with "similar" field values

I have run into a situation where I want to join two tables on a field called U_LotusBox.    In my main table the the feild can contain values like 1 or 2 or 3 or 1,2,3,4. That's 1 comma 2 comma 3 comma 4. My field in the second tables contains only single digit values, like 1 ,2, 3 up to 5.
When the two fields are identical I am able to retrieve data. But if my field in the main contains a value of 1,2,3 and my secondary table field value is 2 I get no data returned because the two fields are not identical.
Is it possible to have a join that is "fuzzy" meaning that if the main table field values contains the value of the secondary field value, 2 in my example would it be possible to return data?
Any thoughts would be appreciated.

Ralph,
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create table test2 (col_b char(1))
insert into test1 values ('1')
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insert into test2 values ('1')
insert into test2 values ('2')
select col_a,test2_tbl1.col_b
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substring(col_a,5,1)=test2_tbl1.col_b
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I mean, how to change the row like:
100 100 200 200....
for rows like:
001 100
002 100
003 200
004 200
I hope you'll help,
Kooyot

Hi,
you need to implement a bit of coding for that.
With the 'do varying' statement abap provides a loop over those fields. Within this loop you can build up a new internal table with one entry for each period and amount.
kind regards
Siggi
PS: I am not very familiar with CO, but I guess there will be a standard extractor for that.

Check Table with Constant Field

I created table ZTEST with fields MANDT and MATNR, and also created check table MARA for field ZTEST-MATNR, so the current check logic is:
ZTEST-MANDT = MARA-MANDT and
ZTEST-MATNR = MARA-MATNR.
But I just wonder whether I can put one more creteria to only check a specified material type (MARA-MTART) such as 'ZAWA', and there is NO such a field MTART in ZTEST. That is, I want to put one more field from MARA for foreign key check, the new logic is:
ZTEST-MANDT = MARA-MANDT and
ZTEST-MATNR = MARA-MATNR and
MARA-MTART = 'ZAWA'.
Thanks in advance

Hi,
Create a database view in the DDIC..With the conditions as MARA-MTART = 'ZAWA' in the selection conditions tab..
Then use the view as the check table for the matnr field in your ztable..
Thanks,
Naren

Table with Audit fields

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