After deletion ODS change log, Delta upload OK?

Hi all,
Now I am reducing data from BW server. For this purpose, I will delete ODS change log. Both of data "from ODS" and "to ODS" are uploaded by Delta Upload.
If I delete change log after last delta initialization, is there any problem to next delta upload?
For example, the last delta initializing was done April 1. And I delete the change log up to April 30. After this operation, can be expected any problem to Delta upload?
Bamboo Shampoo

I dont think it will cause any issue with next delta loads.
Data goes from ODS to its targets from change log table.
But I think better have strategy like..'delete change log data only for requests older than say...1 month or 2 months..'
so that if u have problems with recent data loads..u can reload easily..
u can also try cleaning up old requests from the PSA tables in the system..
cheers,
Vishvesh

Similar Messages

Can we delete the change log table of ods?

hi bw gurus,
can we delete the newdata,active and change log table of ods?how?what is the advantage?
OR
can we delete the contents of new,active,change log table of ods?how?what is the advantag?
thanks in advance
srinivas

Hi Srinivas
Yes, You can delete the contents of changle log table but not the contents of new data and active data table.
Before deleting the change log data you have to make sure that the requests are not required for further delta extraction or for reconstruction purpose.
Steps
1. Goto Manage screen of your ods
2. Click on Environment tab and select the option " Delete change log data".
Adv:
To free up the disk space.
Assign points if it is useful for u.
Regards
Saddy

Duplicate records in ODS change log

Hi Experts,
I have loaded records from R/3 to ODS (psa and then data target).
Records looks good in ODS active data.
Then I did a delta load from ODS to InfoCube and I have recevied are the changed entries to Cube.
Then, I checked the ODS and the Datamart status was Checked.
But, when I did a delta load again after couple of days from ODS to InfoCube, I received some duplicate records. I have checked the Change Log of ODS and the duplicate records were there.
I am not sure why my ODS is transporting entries from the ODS request for which there was a datamart status already checked.
( I cannot do selective deletion because there are about 1000 duplicate entries and in random order..).
I beleive my best bet would be to:
1. Delete both the delta load requests (the request with correct records and the request with duplicate records) from InfoCube.
2. Remove datamart status from ODS
3. Delta load from ODS to InfoCube
Please let me know if this will solve the issue or I will still get the duplicate records in InfoCube?
Also, do I need to Delete Change log data?

Hi Ramesh,
The entries in Active Data of ODS looks good. No duplicates.
When i checked Change log,
I had entries in ODS change log from two differnent requests.
Request1 (Full repair request via PSA) in ODS (ODSR_xxxx1) has records the same as in R/3
(eg., entry for DocumentA has keyfigure as value +$1000)
Request2 (Delta Load via PSA) in ODS (ODSR_xxxx2) has two records with posive and negative keyfigues
(eg, entries for DocumentA has keyfugure as value +$1000 and DocumentA has keyfugure as value -$1000)
So, not sure if I should call these records as 'duplicates'.
But, I see 3 entries in InfoCube for DocumentA with keyfigure values as +$1000, -$1000 and +$1000.
I beleive the ODS change log should actually cancel the earlier +$1000 and load the new +$1000 entry.
But, it seems to be not replacing the old one.
I hope i am clear.

Ods change log

hi all
i wish to schedule the change log deletion for my ods zods1 . however , I am not sure how i can find the ODS change log table name . please guide .
thanks
oops

Follow this menu path right click on ODS -> Manage -> menu environment -> delete change log data. once you go to the screen of delete change log you will see different option to delete right away or schedule for montly deletion.
Hope it is helpful to you.
York

Process Chains and Process Types for ODS Change logs

We have created and used process chains to manage a large amount of our batch processing. I am looking to convert our batch process of deleting data from ODS change logs into a process chain. I have been unable to find a process type that will allow us to do this.
Any thoughts?

Hi Lisa,
You can use Process "Deleting Requests from the PSA" for deleting PSA and change log data.
Since the change log is also stored as a PSA table, you can also use this function to delete change log
records. You can find additional information under Deleting from the Change Log.
More info:
Deleting Requests from the PSA
http://help.sap.com/saphelp_nw04/helpdata/en/b0/078f3b0e8d4762e10000000a11402f/content.htm
Deleting from the Change Log
http://help.sap.com/saphelp_nw04/helpdata/en/6d/1fd53be617d524e10000000a11402f/content.htm
Hope it Helps
Srini

How to check and delete the change logs for DSO

Hello All,
I have build a process chain that will delete the change logs for DSO prior to 7 days but when i executed it, the number of entries are still the same within DSO.
Then i tried deleting directly from "Environment" menu from DSO maintainance but does not work. Can anyone please explain how to resolve this issue or the proper process of deleting the change logs. Appreciated.
Thanks,
M

Hi
Check out the below two articles
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/1058b68f-96c4-2d10-fbb1-de8757ca6a58?QuickLink=index&overridelayout=true
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/a02ba9e7-bb6f-2c10-09b4-e86b9fcbad41?QuickLink=index&overridelayout=true
Regards,
Venkatesh

Reporting on ODS (Change log Table)

Hi,
Can we do Reporting on ODS (Change log Table) that can give me the detailed transactions (invoices, cancellation etc) that is stored in the change log table.
If we can do reporting on the change log table, how can that be done? Please Help!
Thanks,

Hi Bharath,
See here:
http://help.sap.com/saphelp_nw04/helpdata/en/49/7e960481916448b20134d471d36a6b/content.htm
You can use a database table as the source of data:
http://help.sap.com/saphelp_nw04/helpdata/en/02/cd0b405bacdd5fe10000000a155106/content.htm
And store in an ODS:
http://help.sap.com/saphelp_nw04/helpdata/en/30/1d09407448c442e10000000a1550b0/content.htm
Hope this helps...

Identify ODS change log request from Cube update rules init routine

Hello all.
I need to use a logic in the Start routine of a cube, whcih change log request are move from an ODS when doing a delta.
Anyone knows if this is possible???
Thnaks and best regards,
Alofnso.

Hello Oscar.
Basically my requirement is to do a selective deletion of the cube, before I load the new data, but the selective deletion has to be done according to some fields of the data that is going to be load to the cube.
That´s why I need this.
Best Regards,
Alfonso.

Infotype operation (Delete,Insert,Change) Log

Hello Folks,
I want to get the log of operation happend on a infotype in my Z Report.
I know that log can be seen using prog RPUAUD00.
Iam using the FM's HR_INFOTYPE_LOG_GET_LIST & HR_INFOTYPE_LOG_GET_DETAIL but this is not fetching the Operation or action happend on a infotype.
Please suggest me the way to fecth it.

solved on my own
Below is the code
REPORT yinfotypelog.
TABLES:pcl4.
INCLUDE rpcblo00.
INCLUDE rpcbsh00.
INCLUDE rpcbdt00.
PARAMETER : p_aedtm LIKE sy-datum.
DATA: t_change_list TYPE pldoc_key_tab,
w_change_item TYPE pldoc_key.
CALL FUNCTION 'HR_INFOTYPE_LOG_GET_LIST'
EXPORTING
    tclas              = 'A'
    begda              = p_aedtm
    endda              = p_aedtm
TABLES
    infty_logg_key_tab = t_change_list.
DATA: t_before TYPE prelp_tab,
t_after TYPE prelp_tab,
w_before TYPE prelp,
w_after TYPE prelp.
LOOP AT t_change_list INTO w_change_item.
lo-key-tclas = w_change_item-tclas.
lo-key-pernr = w_change_item-pernr.
lo-key-infty = w_change_item-infty.
lo-key-bdate = w_change_item-bdate.
lo-key-btime = w_change_item-btime.
lo-key-seqnr = w_change_item-seqnr.
IMPORT header belege FROM DATABASE pcl4(la) ID
    lo-key .
CALL FUNCTION 'HR_INFOTYPE_LOG_GET_DETAIL'
    EXPORTING
      logged_infotype = w_change_item
    TABLES
      infty_tab_before = t_before
      infty_tab_after = t_after.
ENDLOOP.
LOOP AT t_after INTO w_after.
CASE w_after-infty.
    WHEN '0001'.
    WHEN '0002'.
ENDCASE.
ENDLOOP.

Need of Change log deletion for a DSO, when DTP delta Init with Active Tabl

Hi,
Thanks for your time, please help me with the following
Scenario: I have Cube1 being updated from DSO1 with DTP delta, for quite some time. As per new requirement, I would need to create new data mart such that Cube2 gets updated from DSO1.
In order to Configure the delta, I am Considering Following options, please let me know, which one is right one.
Note: DSO1 is in Overwrite Mode.
Create one DTP with update Mode "Delta" , and "Active Table". I knew Delta Changes are captured in change log, but my understanding is, when you execute the DTP for the First time, it fetches the records from Active Table. And from 2nd Run onwards the very "same DTP" without "any changes" get the records from change log, even if we choose "Active Table".
is my understanding is Right?
Do I have to consider deleting the change log, because DSO1 is in Production from quite some time which is in Overwrite mode?
Do I have to create a DTP with Delta and Active Table, run the dtp Once(Init), then choose "Change Log for subsequent runs explicitly
please help me with these. I have reviewed many sap help articles and sdn threads but none of them were helpful. all of them explains, difference b/w active table and change log table, also gives scenarios like use a full DTP and then 2nd DTP with Delta without Data transfer. I am not looking for that kind of details.
Appreciate any help, Thanks again
Edited by: curious maven on Mar 28, 2011 8:35 AM

Hi Uma,
Thanks for your response.
to your question, If I need to load all the data from DSO1 to Cube1, answer is NO. if you read my post once again,
Existing Flow is : DSO1 --> Cube1 (Means, Active Table and Change Logs of DSO1 already Filled Up)
Requirement is: DSO1 --> Cube2. (Need to Init the Delta, and Detlas going forward)
My Questions:
(1) Imagine, DSO1 has 10 requests, so we see resepctive data in Active Table as well as Change Log. As a matter of fact, Data is being updated to DSO1 in Overwrite Mode, so all the changes(10 requests equivalent) would be captured in Change Log, which in turn helpful / used when we do Delta from DSO1 to any Cube, in my case, it used to update to Cube1. As per new requirement, it needs to update to Cube2.
My assumption is, if I choose "Active table and Delta in Extraction Tab" in DTP, During First Run (Delta Init), Data would be fethed from Active table. And the 2nd Run Onwards, delta records would be fetehced from Change Log automatically, even if we don't change the selection from Active Table to Change Log.
Is My Assumption Right?,
in this process, Do I have to Delete Change Log
(2) Do I have to Explicitly change DTP setting from "Active Table to Change Log" Once Delta Init has been run with setting "Active table" inorder to get Deltas from DSO1 --> Cube2 ?
Appreciate your help
Edited by: curious maven on Mar 30, 2011 3:14 PM
Edited by: curious maven on Mar 30, 2011 3:29 PM

Delete change log data

I was going through posts regarding delete change-log data but I am bit confused with the answers.My data is moving from ODS to CUBE and for the performance reasons I want to delete Change-log data from PSA and keep only 3 day requests.My question - if I delete Change-log whether it effects the delta data from ODS to CUBE.Change-log maintains images so If I keep only 3 requests there will be images of only those 3 request data.If this happens then it will effect all the delta data going into CUBE
Let me know your suggessions
Rgs,

Hi,
     Yes, you can delete the data from the Change Log unless until you do not need to re-construct the data again from the change log table.
     As a good principle for safety reasons if data is not too large, you can keep the data for 7days. This will ensure us to be safe. If something went wrong on week-end say 2 days were gone and on 3rd day the user has identified and raised a ticket on this. Forth day will be for analyzing and re-construction.
    So, unless until if the data is not too large, you can keep it for 7 days in the Change log table and the rest you can delete. As said by the other members, deletion of Change Log table does not affect the delta as it compares with the Active Table and creates a Before Image and After Images records and updates in the Change Log Table.
Raj

ODS Activation Returns 0 records in the Change Log

Hi All,
I have question regarding the Change Log build after the ODS req has been activated.
BW system - SAP NetWeaver BI 7.0 - Level 15
Upon loading a delta request into the ODS and Activating, it adds no records to the change log table.But the active table gets correct records
Checks I Did
ODS -> Menu-> Environment -> Delete Change Log Data.
     No job scheduled or runing to delete the change log reqs (sm37)
RSRV - Check the Status of the Generated Program of a Data Store Object
ODS - reactivation to see if it works..
ODS Manage - Auto Req Processing set Quality status, Activate DSO to Yes.
The Activation Log shows at the end that they were no changed records added:
Data pkgs 000001; Added records 0; Changed records 0; Deleted records 0
Log for activation request ODSR_4APQQHKM459YNO7CIGCE0629U data package 000001...000001
Activation of records from DataStore object C_PUR_C sucessfully finished
U table for DataStore object C_PUR_C deleted successfully
Job finished
Can anyone help on the above issue??
Thanks
Rao

Hello Siggi,
Referring to the previous post:
I have a situation where few documents are not transferred to Change log during DSO Activation, though the After image values of these records are reflected in Active table.
I have found one common pattern for those documents which are not recorded in Change Log.
They have two pairs of After and Before image records.
First Pair like this: Eg: Overall status as the only data field.
Sales Doc     Overall Statuls   Recordmode
1001             C                      X
1001             A
Second pair:
1001            A                      X
1001            C
If we consolidate all these 4 records there seems to be no change for any data fields. Should I consider this as the standard behaviour while activating DSO - causing these records not to get recorded in change log?
Or is there any SAP Note that can make sure the change log gets populated in such case.
Hope my details are clear to you..
- Varma

Problem delete chang log from process chain BW 7.01

We have upgrade BW from 3.5 version to 7.01 version two month ago.
Now I realized that the process chain running one a week to delete PSA and change log don't work well after upgrade.
The process chain end without errors (status is green), but the change log are not deleted.
In the test system I try to delete the Change Log in 2 mode:
1-with the variant "Deletion of Requests from the Change Log " and the datastoreobject = myods and all the option (correct request, incorrect request and "Delete Activation Requests Only"). In the log i see this messagge
The following excluded selections will be processed:
No excluded selections found
The following included selectiosn will be processed:
Pattern: DataStore = 0FIGL_O06, InfoArea = *
The following reqeust selections were set:
Number of days = 0000000010, Successful = X, Incorrect = X, Curr. Requests =
The following change logs were selected:
2-with the variant "Deletion of Requests from PSA " and the datasource= 8myods and all the option (correct request, incorrect request). In the log i see this messagge
The following excluded selections will be processed:
No excluded selections found
The following included selectiosn will be processed:
Pattern: DS = 80FIGL_O06, LS = BWTCLNT100, IS = , AC =
The following reqeust selections were set:
Number of days = 0000000015, Successful = X, Incorrect = X, Load requests =
The following PSAs were selected:
In both case the change log is not deleted.
I can delete the change log only using Manage screen of my ods and then using Menu -> Environment ->Delete Change Log Data.
Anna Maria

I see that this topic is still active/unanswered...
We're having the same problem, but not just changelogs, also for PSAs. We have a weekly process chain that does housekeeping on our BW system, cleaning up PSAs and changelogs, compressing cubes, realigning time-dep masterdata and renewing indexes.
The PSA chain runs fine and about 90% of all PSAs get deleted, but there are some datasources (all of them are of type 8* datamart datasources) that don't get their PSAs deleted. It says "The following PSAs were selected:" and then nothing happens...
I tried all tickbox combinations and checked that there are no PSA entries blocked by invalid partitions. Manual deletion (via "manage" in the datasource) works fine, but is tedious and time consuming.
Also, most of the 8* datasource PSAs do get deleted. Just a handful (+/- 25) get skipped somehow.
Any ideas?
Thanks,
Eduard
PS: We're still running 3.5-style backend dataflow, but will eventually get converted to transformations and DTPs. But that's not on our agenda (yet).

HOW TO USE FUNCTION Deletion of Requests from the Change Log IN PRCSES CHAN

Respected all
i used Deletion of Requests from PSA from the prcess chain and found good results, now i have only one request at the psa and thus i am doing good space utililisation. but when i am using Deletion of Requests from the Change Log i am not getting any changes in the request of dso. kindly let me know how to use this 2nd function.
thanks
abhay

Hi Mahodaya,
As per SAp standards its good to delete the requestes that are no longer needed for the delta update and no longer used ffor inti from the change log table and the data is loaded already in to DSO.
Goto RSPC
Click on create New PC -> enter the PC name n long descp
Next we need to define the start process for the PC.Maintain the start variant process.save n come back.
for deletion of change log we have option in the Other BW Processes -> deletion of requestes from change log
Once u select the option we get a dialoge box here we need to create the variant for the process enter the process variant n long descp. cick ok.
Next in the maintenance screen for the deleting the request from change log table will appear.
Enter the selection patterns to which the requestes should be deleted from the change log.
In the maintenance screen, select one or more Data Store objects for which requests are to be deleted from the relevant change log tables under Data Store Object column and select theInfo Area of the corresponding Data Store Objects under Info Area
If you select the first check box exclude selction pattern, this means that del of requests from change log table will be ignored.
or
We can delete the requests which are Older than N-number of days (or) date in the above screen. For this one, enter the number of days (or) date in the filed Older than .
OR
If we want to select the requests with a certain status then we can also do in the above screen. We can select the following status indicators from the above screen.
Delete Successfully Updated Requests Only -This status will delete only requests which
are successfully updated into corresponding Data Store objects.
Delete Incorrect Requests that were not Updated - This status will delete only incorrect requests which are not successfully updated into the corresponding Data Store Objects.
Delete Activation Requests only, No Load requests- This status will delete only the activation requests (requests that begin with ODSR_... ). No load requests are deleted.

Delete change log

HI BI Expert,
I have got the requirement to delete change log using process chain. I have included the Objecty Type callled Change Log Table and DSO as object name and finally included this process after activating data on DSO process. Whenever, I scheduled the process chain or ran it immediately as well in order to delete change log. But this process does not seem to be working at all. The number of records on change log table is the same as before.
The process chain is as follows;
1. Variant
2. load data to PSA and then DSO
3. Delete PSA data (older than 30 day)
4. Activate DSO Data
5. Delete Change Log (older than 30 day)
Please kindly suggest me what I need to do to make this process working.
Thanks for your help.

hi,
hope u can include all the PSA and change log deletion in different chain and try to trigger the chain weekly, since if u do as in ur chain and if u miss any records and you have to disturb the source again.
try to delete the change log manually and chk if working.
Ramesh

After deletion ODS change log, Delta upload OK?

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