Delta Enabled Generic Data Source

Hi All,
I have created one Delta Enabled Generic Data Source with
Function Module. The Delta field is Date Field. The Data source picks data from R3 to BW.
In RSA3, I executed the Extractor with the Delta Type "C" i.e Delta Initialization ... but it is throwing the error "Errors occured during the extraction". I also checked the Display Log and the error message is "Could not determine BW release of logical system".
Moreover I am not able to see the Delta Attributes in
RSA7. I checked with the other delta enabled generic extractors which uses Views .. is found to be working fine ... and I also able to see the Delta Attributes in RSA7.
Any suggestions?
Bye
Dinesh

Dinesh,
Once you have generated transfer rules in BW for the datasource, delta init can be tried out in RSA3. It iwll not create the delta queue though. Only test the initialization.
To do this, once you have created the transfer rules in BW, specify the logical system name of the BW system in the target system field. After that the extractor can be run in RSA3. It is flagged as read only so delta queue will not get created.
Cheers
Aneesh

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Delta enabled generic data source not updating delta

HI,
   Created one Delta enabled generic datasource with the help of ztable .Fill the content of table by manual entries.
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   fIELD NAME=zTIME
SAFETY LIMIT=30 SEC
ITS FROM 'NEW STATUS FOR CHANGE RECORDS'
Please help me on this issue..
Regards,
MohammeD

how did you create your data source? - based on view, table for Function Module?
If it is based on a View or table, ideally delta should have worked. If it is not working, please chedk the data type of the field. Make sure that delta field (i.e. ZTIME) is getting updated evertyime you change any record in ztable. While extracting data in RSA3 in delta (D) mode, make sure you also give the target system ID. Also try runnign the delta infopackage in BW if it fetches data.
If nothing works, try creating your data source again.
If it is based on Fuction Module, you will have to include the delta functionality in your code.
Regards,
Gaurav

Delta enabled generic data source not generating delta

Hi Experts,
I am simply clueless bt where I went wrong.Please have a look and explain.
I first created a z table in r\3 with one field as timestamp.
Then I created a delta enabled datasource for this table, in the delta enabled field I selected Timestamp.
Safety interval left blank.
Delta was chosen as "ADDITIVE DELTA".
After that I saved my data source and replicated the same in BI server.
Then I created an Infopackage to initialize the delta and then one more infopackege was created as delta .
Initialization was successfull.
Now I triggered the delta infopackage to bring delta to PSA
BUT
it does not bring the delta ,rather each time it brings in ALL records to PSA . This is the problem m facing .
PLEASE EXPLAIN ME IF YOU CAUGHT ANY MISTAKE IN THE ABOVE FOLLOWED STEPS.
waiting for reply
Manish Sharma

Hi Teja,
Thanks for your reply, I checked the same .
The initstate field has the value 'X'.
I checked in RSA3 but upon test extraction it says 0 records selected.
Pls investigate more on this.
Manish

Delta using generic data source

Hi experts !
How can i create a delta using generic data source ? i am using BW 7.0.
Thanks.

Dear FABRICIO VAZ DE SOUZA ,
Generic extraction
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/84bf4d68-0601-0010-13b5-b062adbb3e33
step by step procedure for generic extraction delta
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/84bf4d68-0601-0010-13b5-b062adbb3e33
Refer:
/people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
http://help.sap.com/saphelp_nw04/helpdata/en/3f/548c9ec754ee4d90188a4f108e0121/content.htm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/84bf4d68-0601-0010-13b5-b062adbb3e33
Generic Extraction via Function Module
/people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
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Assign points if helpful
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Bala

Error while doing DELTA Extraction (generic data source)

Hi BW Experts,
In my R/3, I have a generic data source ZBUT_VW.
It receives data from a View which is created based on couple tables.
When I do full load to the corresponding ODS, it is successful.
But after that I delete the ODS and created CUBE with DELTA
I have Initialized delta.
When I do DELTA extraction, it fails.
The error The ALE inbox of the SAP BW is identical to the ALE outbox of the source system
and/or
the maximum wait time for this request has not yet run out
and/or
the batch job in the source system has not yet ended.
I delete the initialization load and trying to do DELTA extraction again and it Fails.
With the same error
Please let me know how can I resolve this problem.
URGENT
gaurav

I dont think it is possible to have to additive delta with creation date.
Try a full load to cube to check if the extractor is working.

Delta for Generic data source.

Hi,
I have created a generic data source for which I have taken the change data as generic delta in CRM4.0. But the problem is delta is not getting initiated. like we are not getting any records in delta. Kindly guide me what else i have to do to get this delta
Thanks
Naveen

Hello Naveen,
What is the delta method you have used, is it Time stamp or ALE Pointer?
See this SAP Note 539547 Generic delta with date does not work
Please see these docs as well
[How to Create Generic Delta|How to Create Generic Delta]
[How to Create Generic Data Sources which use the Delta Queue (NW7.0)|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10b68b99-022e-2a10-999d-c4dc9ec24a59]How to Create [Generic DataSources Which Use the Delta Queue (NW2004)|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/d3219af2-0c01-0010-71ac-dbb4356cf4bf]
Thanks
[Chandran|http://chandranonline.blogspot.com/]

To enable delta in generic data source

Hi,
There is a generic datasource created on top of PRPS & RPSCO tables. Currently the extraction mode is 'full update'.
There is no time stamp field available in RPSCO, Please suggest how can I enable delta?

Hi
Make sure at least you have Numeric pointer or time stamp field in your table to make the data source enable.
If you created view on these two tables, then in RSA6 --> open the data source --> goto edit mode.
here you will delta enable check box --> select this check and you can give the field which has to be used for delta.
If you using FM, then you have to write to code in functional module.
Regards,
Venkatesh

Delta-enabled 0MAT_PLANT_TEXT data source?

We're implementing BI 7.0 in an ECC6. We have a very large MARC table due to about 360K materials created across 350 locations. This currently equals about 31 million records on MARC.
Populating 0MAT_PLANT has become a real pain because apparently the 0MAT_PLANT_TEXT data source does not support deltas. This means a very long wait to reload 31 million rows each time we run the master data process chain.
0MAT_PLANT_ATTRIB supports deltas, as does 0MATERIAL_TEXT. I've searched OSS and googled to no avail.
Has anyone come across a way to delta-enable 0MAT_PLANT_TEXT? I've poked around with the extractor in RSO2, but the delta checkbox is always grayed out. I suppose I could create a custom extractor but not sure that generic deltas would be the right thing?
Thanks for any ideas.
--Scott

Hi Scott,
first of all I would think about if it is really necessary to do a text upload all the time. Basically the texts don't change frequently, so it might be enough to upload the texts once in a while. Additionally you might restrict the load to just one or two languages, depending on your needs. Next suggestion might be to have some parallel infopackages (restricted by number ranges) to speed up the load.
If all this will not help, you might need to create something generic based on mara, marc and makt using the fields mara-ersda and/or mara-laeda for your generic delta.
regards
Siggi

Generic data source with Delat on KONV

Hi Guys,
Did any one create a delta enabled generic data source on KONV.
Please do provide any development on how to get delta from change log tables..
Appreciate any help.
Thank you,
PVK

hi PVK,
use this link,
http://www.gnu.org/software/guile/changelogs/guile-changelogs_toc.html
with hopes,
Raja Singh

Generic data source delta settings

HI
i have to create delta for Generic data source based on 2 fields like "created on" and "changed on" fields.
how to set this
try avoid numeric point & Whit out using function module
and what is the safety interwell (Please use simple words)

Hai Sudha,
Safety inteval is nothing but for ex you have updated your data from R/3 to bw at 11 am If client want the data in between 11.1min to 11.4min the records which are going to present in between the 1 min to 4 min that records only can updated if and ony if your data source is going to make as an generic delta.
bye.

How to enable delta in a generic Data Source

Hi,
   I am developing a Generic Data Source (Z) based on a view.
   How can i enable it to delta capable...
   What is the concept of Calanderday......timestamp....pointer
   How can i make a decesion (what factors do i need to consider) to go for Calanderday......timestamp....pointer
Please provide me detail steps & description on this as this is my first data source
Thanks

hi
how to ...gds
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/84bf4d68-0601-0010-13b5-b062adbb3e33
1. Time stamp - The field is a DEC15 field which always contains the time stamp of the last change to a record in the local time format.
2. Calendar day - The field is a DATS8 field which always contains the day of the last change.
3. Numerical pointer - The field contains another numerical pointer that appears with each new record
Please check this link on generic delta
http://help.sap.com/saphelp_nw04s/helpdata/en/37/4f3ca8b672a34082ab3085d3c22145/frameset.htm
WHEN U CHECK UR DATASOURCE IN RSA6 U WILL FIND THE DELTA UPDATE CHECKBOX IS CHECKED.....
hope it helps,
cheers.

Delta field not enabled for selection in generic data source

Hi
I have created a generic data source for the table VBFA....and for the delta pick up i have put the delta option as CALDAY on the field ERDAT...and i have selected that field for the selection option. but after i made it delta enabled the selection option got disabled.
Now when i check the info package delta selection tab that date column is not apperaing.
But when i have to run the info package for the first i dont want all the data as it has a huge set of data.
I wanted to take only this months data.
So is there any option to be set to enable this selection in info package.
please suggest.
Regards
Shilpa

Hi there,
That's the stardard behaviour. If you use delta based om ERDAT, that field won't be available for selecting.
You could for example try to build a view over VBFA, and let the field ERDAT there and another field, for example ZERDAT (that is just another alias for ERDAT). Create the delta based onyour view over the field (ERDAT), but you can still control the restrictions over the extractore with your ZERDAT.
I don't know if this is possible, this is only an assumption.
Another option could be first to create an extractor based on the table VBFA but without delta, that field ERDAT would be available. Do your full data restricting it, and after that, change your datasource to use deltas based on ERDAT. It will be unavailable than, but since you've already loaded previous full data, you could than use your delta like it is. But here, remember, your deltas will bring new and change data based on ERDAT. If it brings delta based on changed data over ERDAT to a record that you didn't brought over your full (only some data), it will be incorrect records.
Also just an assumption, did not try it.
Diogo.

BW Master data delta generic data source for further update in BW

Hi BWers,
I am looking for an option to load delta from Master data to another master data within BW. Export data source option for master data only has full load option but no delta update possible.
I tried creating generic data source delta enabled on view of master data (/BI/M). But the problem I am facing now is master data contains quantity field as attribute and this field refers another table RSDKYF for unit. To be able to create data source on view / table no field should refer field in another table.
Did anybody create delta for master data for further loading within BW or came across similar issue with key figures, please let me know the best procedure in this scenario? Appreciate your quick response.
Regards,
Madhav

In your master data attribute have a date field which will be filled by the R/3 load as sy-datum - then create an export datasource and in the infopackage - give a selectoion for the date field as sy-datum and sy-datum -1..
Not exactly a delta but then usually master data is not kept as delta because the volumes are usually less - you can achieve delta by this method...

Generic Data Source delta is not extracted

Hi,
There is a problem in extracting the delta records using Generic Data Source. Delta records ( New / Modified records ) are not posted in the RSA7.
I'll Explain you the Scenario I have done. Created a generic data source in R/3 using view. In the view there is a field Sales Order No. I have enabled the delta update for this field. In the generic delta i have chosen delta type as Numeric pointer.
Extracted the entire record using full update and after initializing the Delta, it extracts the delta record well ie. it only extracts the sequence of Sale Order No. First I extracted nine records(i.e 10001 to 10009) using full update. again I entered a record in underlying table with sale order no as 10011-10013. It extracts those records into BW system. Then again I made an entry in the table with sales order no 10010. But the record is not extracted. Even though I tried of specifying safety lower limit as -3. Still it not extracting the record(10010).
And what if I posted a value of sale order 10014 with the same. what should I do?? Help on this plz.
--Durai.S

Hi SVS,
Thanks for your reply.
I followed this in my scenario. But I don't understand why it is not extracting? even I specified the safety limit of upper and lower values in the generic delta.
Here the below explanation shows that the delta record can be extracted even if the pointer value is greater than the posted value.
Numeric pointer (last extracted value 10011; Data in underlying table (Max value = 10025) )
Data would be extracted from a min-value of 10010 (lower limit adjusts the last counter 10011 by specified value u2013 1)
max-value of 10020 (after adjustment for upper safety limit u2013 by 5). The current pointer would now indicate 10020 in
RSA7.
--Durai.S

Delta loading of generic data source.

Hi,
please tell me the procedure for How to load Delta data For generic data source?

Hi
You can use the following procedue
Enabling Delta Load
Use
You must first configure and modify the DataSource to be used for delta loading in CAF and SAP BW integration and define delta-relevant attribute fields.
Prerequisites
You have launched the Maintain Generic DataSources tool of SAP BW.
Procedure
1. Configuring Generic DataSources
     1.      In the DataSource pane, choose next to the Transaction data field to select the DataSource to use for CAF and SAP BW integration and choose Change.
     2.      In the Change DataSource maintenance screen:
           a.      Set Applic. Component to BW.
            b.      Choose Save.
    3.      In the Create Object Directory Entry dialog box:
            a.      Choose Local Object to see the DataSource information.
             b.      Choose Save to return to the Change DataSource maintenance screen.
4.      Choose Generic Delta. In the Generic Delta dialog box:
            a.      Browse Field Nm. to select the delta-relevant field.
           b.      Mark the Time stamp radio button.
            c.      Mark New Status for Changed Records.
5.      In the Selection of field determining delta dialog box, select the following delta-relevant fields:
○       For the entity service DataSource, select the field corresponding to LASTCHANGEDAT.
○       For the application service DataSource, select the field corresponding to delta-relevant field specified by BW extractor method developer.
6.      In the DataSource: Customer version Edit screen, save all data.
2. Activating DataSources
       1.      Launch the SAP BW Administrator Workbench and go to Modeling.
      2.      Open the list of InfoSources and select the DataSource assignment you want.
      3.      With the secondary mouse button, choose Replicate DataSources.
      4.      Select the same object from step 3 and choose Change Transfer Rules with the secondary mouse button.
      5.      In the InfoSource Change screen, choose with the quick info text Activate.
Initializing Delta Load
Prerequisites
You have configured the DataSource for the delta loading process. For more information, see Enabling Delta Load.
Procedure
1. Starting Delta Initialization
     1.      Launch the SAP BW Administrator Workbench and go to Modeling.
     2.      From the Modeling pane, click InfoSource to populate the InfoSource pane and select the InfoPackage you created for the InfoSource in, for example, Example of Data Extraction.
      3.      From the Update tab page, activate the Initialize Delta Process indicator.
      4.      To define parameters to be used for the delta load process, go to the Data Selection tab page and define relevant parameters.
      5.      In the Schedule tab page, choose Start to begin delta initialization.
If you defined parameters to be used in delta load (step 4 above), use PSA in the modeling component of Administrator Workbench to view the request results.
     6.      To check when delta initialization is finished, go to the Maintain InfoPackage screen of the Monitor u2013 Administrator Workbench and press F6.
2. Monitoring Delta Initialization
     1.      Launch the BW Delta Queue Maintenance and select the DataSource in question.
     2.      Use the secondary mouse button to see the current pointer value in Generic Delta Current Status.
     3.      You can delete the delta initialization (if you want, and subsequently create a new delta initialization) in Scheduler (Maintain InfoPackage) by choosing the delta request from Initialization Options For Source System and choosing Remove.
In this screen, you can also check the status of the delta initialization request.
To see the content and results of the delta initialization request, go to PSA in the modeling component of Administrator Workbench to view the request results.
3. Running Delta Load
You can run the delta load process only after delta initialization has been completed.
     1.      Open the InfoPackage and in the Update tab page activate the Delta Update indicator.
      2.      Go to the Schedule tab page and choose Start.
*Enabling Delta Load *
Use
You must first configure and modify the DataSource to be used for delta loading in CAF and SAP BW integration and define delta-relevant attribute fields.
Prerequisites
You have launched the Maintain Generic DataSources tool of SAP BW.
Procedure
1. Configuring Generic DataSources
      1.      In the DataSource pane, choose next to the Transaction data field to select the DataSource to use for CAF and SAP BW integration and choose Change.
     2.      In the Change DataSource maintenance screen:
        a.      Set Applic. Component to BW.
        b.      Choose Save.
    3.      In the Create Object Directory Entry dialog box:
           a.      Choose Local Object to see the DataSource information.
            b.      Choose Save to return to the Change DataSource maintenance screen.
   4.      Choose Generic Delta. In the Generic Delta dialog box:
       a.      Browse Field Nm. to select the delta-relevant field.
       b.      Mark the Time stamp radio button.
       c.      Mark New Status for Changed Records.
5.      In the Selection of field determining delta dialog box, select the following delta-relevant fields:
○       For the entity service DataSource, select the field corresponding to LASTCHANGEDAT.
○       For the application service DataSource, select the field corresponding to delta-relevant field specified by BW extractor method developer.
   6.      In the DataSource: Customer version Edit screen, save all data.
2. Activating DataSources
   1.      Launch the SAP BW Administrator Workbench and go to Modeling.
   2.      Open the list of InfoSources and select the DataSource assignment you want.
3.      With the secondary mouse button, choose Replicate DataSources.
    4.      Select the same object from step 3 and choose Change Transfer Rules with the secondary mouse button.
5.      In the InfoSource Change screen, choose with the quick info text Activate.
Hope this helps
Regards
Shilpa

Delta Enabled Generic Data Source

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