Inits, deltas and full

Hi Experts
I am trying to clarify the data flow in 2004s.
1. If I am loading from R/3 datasource (Which is delta enabled) to a DSO in BW, i first load a full load with initialization with data transfer using an infopackage. I do the delta load with another infopackage selecting delta.
2. The above step only brings data to the PSA. From the PSA, DO I NEED TWO DTPS? one for full and other for delta?
3. From the DSO to the cube, do I need two DTPs again? Or a single DTP with extraction from the change log as delta is enough, even for the first load from the DSO to the cube?
Can someone confirm / clarify this?
Jason

1. If I am loading from R/3 datasource (Which is delta enabled) to a DSO in BW, i first load a full load with initialization with data transfer using an infopackage. I do the delta load with another infopackage selecting delta.
Thats correct.
2. The above step only brings data to the PSA. From the PSA, DO I NEED TWO DTPS? one for full and other for delta?
you need not do two DTP's to collect the data from PSA, design one DTP in delta mode from PSA, it would all the request in the PSA, no matter if its full or delta in the first run, from the second run it would pick all the requests that are new after the first run.
3. From the DSO to the cube, do I need two DTPs again? Or a single DTP with extraction from the change log as delta is enough, even for the first load from the DSO to the cube?
just as said in point 2, one DTP with change log as delta would do the job

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You can read about the details here:
http://help.sap.com/saphelp_nw04/helpdata/en/80/1a65dce07211d2acb80000e829fbfe/content.htm
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I have one doubt please clarify that.
If i have a Cube and i m pulling data on basis of Full Load . Then i switch to delta load, before that i took the INIT load without data transfer.
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Edited by: Surendra Reddy on Nov 21, 2008 1:57 PM

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Message was edited by: Sriram k

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Inits, deltas and full

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