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Former Member

Generic DataSource & Delta setup

Hello Folks,

I am trying to get my Generic DataSources and Delta concepts straight and got more confused after reading a white paper titled "how to ...create generic delta". <b>I am on SAP R/3 4.6c and BW 3.0b.</b>

<b>This white paper talks about creating generic datasource and delta using RSO2 in BW</b>. It explains how to specify delta-specific field and then select a delta type (AIE or ADD) which sets the "delta update" flag after generating.

My question is

1)should we create a generic datasource and delta from BW as suggested by this white paper and not in SAP R/3 directly using RSO2 and RSA3? what are the pros and cons.

I tried creating a generic datasource in SAP R/3 using RSO2 since these transactions are available in SAP R/3. I noticed the "delta update" checkbox was always(or for the cases I tried) blank and protected. Also noticed a menu item under "Datasource" called "setup delta" to be grayed out as well. So looks like, a delta can be set up in SAP R/3 but does not let me do it.

My question is

1) why can't I set up a delta?

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    author's profile photo Former Member
    Former Member
    Posted on Feb 21, 2005 at 07:19 AM

    hi jay,

    i'm reading the document right now, and i'd like to help clarify your questions:

    1- you are not expected to create the generic datasource in BW. the document is explaining that you should make them in your source R/3 system.

    2- you can't setup a delta because, wel, you probably didn't have the delta-specific field name populated. that would explain your problem.

    hope that helps. ask some more if you need more help. =)

    ryan.

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  • author's profile photo Former Member
    Former Member
    Posted on Feb 21, 2005 at 07:26 AM

    Hi Jay,

    First, you do not create a Datasource from BW. A Datasource is created in R/3. You replicate them to BW afterwards so that you can create/map them to Transfer Rules.

    Datasource creation is in R/3 only. You can of course create BW as a source of data for other systems but thats something else.

    Creating a <b>GENERIC DELTA</b> is based only on <b>TIMESTAMP</b>, <b>NUMERIC POINTER</b> and <b>CALENDAR DAY</b>. <i>Delta Check box</i> is really grayed out for <b>GENERIC DATASOURCES</b> because once you specify that your generic data source is <i>DELTA</i> capable by using any of the three options above as DELTA, then the <i>Delta Check Box</i> is automatically checked.

    What <i>Setup Delta</i> are you referring that you cannot do?

    --Jkyle

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  • author's profile photo Former Member
    Former Member
    Posted on Feb 21, 2005 at 03:01 PM

    Folks,

    That was my understanding in the beginning.

    I tried transaction SBIW in SAP 4.6c and did not notice any of those white paper screens - specifically "Generic Delta" pushbutton in "Create DataSource" screen. The "Setup delta" menu item you mentioned is in SAP 4.6c.

    Yesterday night, I tried this solution in SAP 4.7 and I was surprised to see the same screens as the white paper including the pushbutton to create Generic Delta.

    what a surprise huh !!

    any way thanks a lot folks.

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