Enabling FI-SL extractor with delta capability

I am working on enabling FI-SL (3FI_SL_*) extractor with delta capability.
Implemented OSS note 328197 successfully and also related OSS notes.
This works on totals table. Source system is 4.6C
Tested BW01, BW03 and everything seems to be fine, and shows as if extractor is enabled for delta loads.
I have done initialization. it works fine and got records.
But when I do delta - it shows ZERO records.
In RSA7 also I see Zero records.
If you have any experience , will you please share with me.
It's a very urgent one.
Venu

Create some records in the source system so that the base tables for this extractor will add some records.
Then check rsa7 whether it shows any records for next delta.
As Hari said..there might not be fresh records created or records changed,if you do delta load immediately after an init load.
cheers,
Vishvesh

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Function Module Extractor with Delta

I'm very new to working with the BW, so I hope I'm explaining my question in a way that makes sense.
I need to make a BW extractor that pulls data from at least one table, possibly more, and which also calculates some data.
I think the only way I can do that is by using an extractor with a function module.
I've been looking at the examples in function group RSAX, and I think I sort of get it, except for one part.
I'm really confused about how the delta works.
I'm looking at the example: RSAX_BIW_GET_DATA_SIMPLE
Does it even use a delta?
I'm trying to understand how the delta gets passed, and how it gets used to filter the data in the function module. I'm not sure if it's something I need to code in myself, or if it's something that BW does by itself, or what.
I'm not sure if I'm making sense, but if anyone could help me, I'd appreciate it.

Thanks guys, you've been super helpful so far, so I'm just going to keep asking questions. I promise to award points at the end
I'm looking at it now, and I think if I change it to read from a table, instead of read from a function module I can use the 'numeric pointer' option for the delta. (Does that just mean a number? For example, payroll runid is a number, so I could use that and only get new payroll runs?)
However, there still are some calculated fields they want. Someone mentioned doing that on the BW side. How would that work?
Sorry for such vague questions, but any help is really appreciated.

Function Module Extractor with Delta Functionality

Hi Friends,
I have to extract the entire data of CDPOS table in R/3 , as its a cluster table I am unable to build a view, I am planning to go for FM extraction, Could someone help me as how to build it with Delta Functionality.
I think I need to develop the Datasource, with Extract Structure,( Do I need to create a Structure in SE11) Please help me out .
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Krish

Hi,
you can either use an existing structure or else create one on your own. (SE11).
The DeltaHandlig fairly easy.
When having finished the extractor (FunctionModule, Structur and DatasSource), go to the "generic Delta" button and select the relevant field.
The Generic Delta and its DeltaPointer is managed within the DeltaQueue (RSA7) and works more or less like a selection. Don't think too hard about it in your function module except taht you need to select by this field in your FM.
Did that come clear?
hth
Cheers
Sven

Generic FM extractor with Delta

Hello all,
I am trying to create a delta function module extractor on a table. I have creation date ANDAT, last change date AEDAT and a deletion flag on the table.
FM has to handle history, new and changes.
How can I generate delta? Can I just use RSO2 to set up delta? How can it be done? Also, can I get the code for a generic FM delta extractor?
Please help.
Thanks,
Anirudh.

Hi Sajeed,
So, I do not have to handle delta in the extractor at all? Just create a function module based extractor with all the fields and actually take care of delta in the infopackage??
The creation date is for newly created records and the change date is for changed records.
My email is [email protected]
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Anirudh.

Enhance LIS_ extractor with delta load

Hi all,
I need to enhance 2LIS_02_ITM or 2LIS_02_SCL with account assignment (EKKN). How should I handle the delta from account assignment? It is in 460 environment. I'd like to have similar extractor as 2LIS_02_ACC which exists in 700.
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Thanks
J.

Hi J CHEN
In my opinion first check with MM -Purchasing consultant whether the delta in account assignment is linked to purchasing document changes or not ? (check whether delta is supported or not ...you can do this testing in SAP R/3 Side) and if answer is YES then you should go for Option 2 which is relatively simpler.
hope this helps
Regards
Pradip
(Friends: Don't forget to assign points !!)

Generic extractors with delta

hi all,
can any one please provide any thing on generic extractors particular to delta (time-stamp)
VRKR

Hi,
please search the forums. This question has been asked already a lot of times. Additionally you might check my business card --> there is a link to a weblog related to that issue.
Siggi

Extractor with delta

Hi Everybody,
I am using a delta mechanism and would like to check the actual value of the field used for the delta. Where can I find this value?
Thanks in advance
FedeX

Hi Fedex,
Check in RSA7. Check the last column i.e. STAT column. But before this you have to upload the data atleast once.
If useful..assign points.
Regards,
P B

Generic Extractor using FM with Delta Logic

Hi,
i want to create a generic extractor with Delta Logic based on a FM.
The extractor works fine for full loads (extractor method "F" or "C"), but delivers no record for the extractor method "D" (Delta). I placed a hard coded break-point in the FM, so that the processing should stop while testing it with TC "rsa3". Using the extractor method "D" the debugger doesn't stop. So it seems, that this FM will not be processed for method "D". What could be wrong?
I tried different ways to create the generic extractor:
First i copied the template "RSAX_BIW_GET_DATA_SIMPLE" and tried to get the information for delta-run by "LOOP AT i_t_select INTO l_s_select WHERE fieldnm = 'DATE_FIELD'." But as the processing for method "D" does not consider the FM, there is no chance to get delta data.
On second try i used the template "RSAX_BIW_GET_DATA" and changed "EXMETHOD" from "F1" to "F2" in table ROOSOURCE for the Data Source. In this case i get information about the Update mode (Parameter i_updmode). But the processing leaves the FM for extractor method "D" out too.
Does anybody know, why the FM is not processed for extractor method "D"?
Is there another way to get delta capable extractors based on FMs?
Thanks for help in advance!

Hello
See this blog which uses the same FM with explanation
/people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
See this forum too
Generic Delta Function Module
Other docs
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/84bf4d68-0601-0010-13b5-b062adbb3e33
http://help.sap.com/saphelp_nw04/helpdata/en/37/4f3ca8b672a34082ab3085d3c22145/content.htm
Thanks
Chandran

Sharing an extractor with another BW system possible?

Dear all,
We currently run BW3.1. Now we would like to install NW2004s next to it.
Is it possible to use the same extractor with delta loads when you have only 1 source system with 2 BW systems?
Do both BW systems contain all information after delta loads?
Thanks in advance,
Ralph

Hi,
Yes, its possible. You can have just one source system, feeding multiple BW systems. But in your case, I'll be careful as you are trying to upload data to 2 different versions of the BW system. You have to check and test for the PI versions on the R3 side. Your current set of PI versions on R3 will have to be upgraded if you are planning to connect the system with the netweaver 04s version. Once you upgrade, you also need to make sure that the data loads work fine with your older BW version as well.
Cheers,
Kedar

Generic Extractor with ALE-Delta Capability

Hi all,
I need to create a generic Data source based on 2 tables with fields: MARA-SPART.
MAKT-MATNR,SPRAS,MAKTX.
so i created a view on same and used it in creation of data source in T.C: RSO2.
My requirement is to make this Data source
Delta-capable using <b>ALE-Delta mechanisum</b>.
Please let me know your views regarding same.
And i promise to return and reward the answers.
Thanks&Regards,
Augustine.

Hi Augustine and welcome to the sdn,
it is not possible to get a delta on the fields you added to your view. You have 2 options.
1st: add fields aedat and erdat of table mara to your view. Create 2 infopackages in BW to load all records created and all records changed in a specific time range.
2nd: create a fm and select the required fields from mara and makt that are created or changed in a specific time range. Create a ddic structure as extract structure containing spart, matnr, spras, maktx and a date field for the generic delta. See also this information about fm-extraction: /people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
Hope this helps
regards
Siggi

Regarding Making DB Connect Delta Capable with external Sources

Hi Everyone!
Although as standard DB Connect does not support Delta, this much I have understood. Lately I came across an article from Shreekant Shiralkar and Bharat Patel, BW System Managers, Bharat Petroleum, India in an old BW Expert Article... I have understood that this is from BW 3.0 upwards. Can this be applied to BI 7.0? The Title of the article is "Make DB Connect Delta Capable with External Sources"
Chetan? Edwin? Olivier? Anil? Sandeep? Moderators?
Regards,
Philips

Hi Philips,
I didn't read this article but I'll expose what we have implemented here.
All data coming from non SAP systems are loaded into what I named a "pre staging" database (PSDB) prior extracted to BW. This PSDB is nothing else than a simple, cheap, easy to manage MSSQL server 2000.
Our BW has this PSDB system declared as DBConnect source system.
In few words, we do data cleansing, preparation, formatting in this PSDB when any non SAP data shall be loaded in SAP BW. In addition, we use this machine to perform any R/3 datamigration required for new Rollouts.
Coming back to the delta handling: we don't handle deltas with this DBConnect source system because SAP BW doesn't consider it as delta capable natively.
We develop function modules extractors having the MyBW as source system. MyBW then "think" it is a SAP delta capable source system and we can then setup our MyBW DataSources with any kind of delta type by changing manually the core table ROOSOURCE.
The extractor itself does many things because all structures are handled dynamically and some part of the extractor coding itself is generated on the fly.
The extractor also creates temporary stored procedure directly in the PSDB so that only deltas are delivered to BW.
The core of the extractor, I think everyone would agree, is the OPEN CURSOR statement. The OPEN CURSOR in our case is simply done within an EXEC SQL having our PSDB connection open.
I could discuss this approach at length but we are now running this for more than 3 years (of course a certain effort has been done initially) to our full satisfaction.
I am now finalizing the next "generation": having the PSDB server posting itself, deltas to the MyBW TRFC queue, emulating some how a LO/LIS DataSource.
hope this shed light (at leas mine...)
Olivier.

Using Transformations with Delta enabled Datasources

Hi,
I have a delta enables datasource which uses incremental update to my infoCube.
In order to populate some fields in the cube I used a transformation routine for a couple of these fields to do some lookups from some tables.
The problem that I am encountering is that when the delta update runs its only updates the directly assigned fields it does not also update the routine delivered fields.
Is there a way to get this to work or is it impossible?
Thanks

HI,
The routines work fine for full load as the data is replaced with new data each time.
What I need to happen is I am using a SAP standard content datasource with delta enabled on the datasource and when loading from datasource to Cube all the 0 fields are updating correctly but my Z fields which i update with routines do not seem to be replaced.
Please advise of anyway to get this to work
Thanks

Custom Extractor FM with Delta mode

I have looked a few blogs that dont seem to address the whole picture.
the online help looks to be wrong?
http://help.sap.com/saphelp_nw70/helpdata/en/3f/548c9ec754ee4d90188a4f108e0121/frameset.htm
Im trying to set up an FM to do generic extraction.
Declare Datasource in RSo2. With Generic delta... all looks BUT
RSa3 can call th FM.
Seems the ROOSOURCE entry was with type F2.
If I copied a "proper" generic delta with complex interface and not the simple interface,
the entry in roosurce looks wrong to me.
What is the normal way to maintain the data source so that generic extraction works and can be tested in RSa3.
I also found this blog:
/people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
again the issue of deltas is over looked.
The demo function is RSA3_GEN_GET_DATA
BUT when create a dat source with rso2, the function interface used to call teh function
matches function RSAX_BIW_GET_DATA_SIMPLE
and not RSA3_GEN_GET_DATA.
The helpd refers to delta mode, but the interfae does NOT have the upmode flag.
Am i missing something or is this a whole in the RSo2 process.
Custom FM based extractors CAN NOT be called with delta mode.
surely someone knows what the trick is here ?
Cheers
Phil.
Edited by: Phil Soady on Aug 25, 2009 7:00 AM

https://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/67efb9bb-0601-0010-f7a2-b582e94bcf8a
No reference here either.
my conclusion that without using pseudo deltas, ie adding a field called delta mode, to the structure
and programming over the simple interface with a extra field
or
build a full F1 complex datasource definition tool,
there is no good standard solution.
Im still interested if anyone has a good approach to this.
regards
phil

Generic extractors as delta enabled

Hi Experts,
I am looking for a thread or Blog that describes the steps to enable Generic extractors as delta enabled.
Alok

Hi,
Goto--> RSO2 -> Enter your datasource name->Press on Generic Delta
Select one in Delta Specfied field...
U can set any of the below 3 based on ur reqmnt..
Time stamp or Calender day or numeric Pointer.
How to Create Delta..
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/84bf4d68-0601-0010-13b5-b062adbb3e33
/people/siegfried.szameitat/blog/2005/09/29/generic-extraction-via-function-module
Generic.. SAP Help
http://help.sap.com/saphelp_nw2004s/helpdata/en/3f/548c9ec754ee4d90188a4f108e0121/frameset.htm
http://wiki.ittoolbox.com/index.php/HOWTO:Generate_a_generic_DataSource
Thanks
(Assign Points if useful..)

Generic Data Source Based On Function Module (Delta capable)

Hi,
My requirement is to develop a Generic Extractor based on Function Module (Delta capable). As I already found many threads explaining this concept, but most of them discussing FM RSAX_BIW_GET_DATA_SIMPLE with Extraction Method F2. There is another FM RSAX_BIW_GET_DATA which, one can use to build delta enabled extractor.
Although I do have some doubts:
what is the E_T_SOURCE_STRUCTURE_NAME ?
read table i_t_select into l_s_select with key fieldnm = 'PGMID'. Use of this code ?
Templet only showing
case i_updmode.
      when 'F'.
      when others.
        if 1 = 2. message e011(r3). endif.
        log_write 'E'                  "message type
                  'R3'                 "message class
                  '011'                "message number
                  i_updmode            "message variable 1
                  ' '.                 "message variable 2
        raise error_passed_to_mess_handler.
    endcase.
i.upmode as F, D(delta) is not included, do i need to include this?
Can someone help to solve this. Appropriate points will be allotted to helpful suggestions.
Edited by: Debjit_Singha_86 on Jul 23, 2011 8:35 AM

Try using following piece of code;
READ TABLE g_t_select INTO l_s_select
                             WITH KEY fieldnm = 'Date Field for Delta'.
      IF sy-subrc EQ 0.
SELECT SINGLE *
                       FROM ROOSGENDLM
                       WHERE oltpsource EQ 'DataSource Nameu2019
                       AND slogsys      EQ lw_slogsys.
          IF sy-subrc EQ 0.
            lw_date = roosgendlm-deltaid+0(8).
            lw_time = roosgendlm-deltaid+8(6).
                                                                                ENDIF.                       " IF SY-SUBRC EQ 0.
ENDIF.
OPEN CURSOR WITH HOLD S_CURSOR FOR
SELECT * FROM TABLE
                               WHERE CPUDT     GE   lw_date   AND
                                           CPUTIME GE   lw_time.
    ENDIF.
Table R00SGEMDLM stores the date and time data was last extracted from a data source.
Alternatively, you can also try using the i_updmode.
When 'F'.
SELECT * FROM TABLE (without any where clause on last change date)
When 'D'
SELECT * FROM TABLE
                               WHERE CPUDT     GE   lw_date   AND
                                           CPUTIME GE   lw_time.
These are just suggestions. Try these out, I hope it helps.
Regards,
Gaurav

Enabling FI-SL extractor with delta capability

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