on 02-17-2007 4:13 AM
Hello Experts,
We need some form of comparative design guidelines.
What I mean is for instance LOOKUP : whether to carry out lookups from an Oracle database or from R/3. What are the advantages and disadvantages for each.
Any form of help will be of much help.
You can share your document at himadrichakraborty@gmail.com
Thanks,
Himadri
Hi Himadri,
Db lookups are simpler than RFC look ups. If you already have the table in R/3 go in for a RFC look up. But if you need to create the table from scratch, go in for a DB look up. Just search "JDBC look up" in SDN you will find many helpful links.
Regards,
Jai Shankar
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Himadri,
DB lookup brings into picture the fact that you will have to manitain a separate Database etc for purely lookup purposes.
If you have an existing database which XI can access then it should be ok. <i>But, if you are planiing to introduce a Database into your landscape purely for Lookup's I would seriously veto against the idea.</i>
You XI installation is basically an R3 system and so you can instead maintain a table for your lookup on your XI system itself and do the lookup in your mapping using the lookup API's using an RFC. Ofcourse you would need some customization in terms ot a Z Table and a Z RFC ( there is a standard RFC which we have used TABLE_ENTRIES_GET_VIA_RFC but this has some limitations )
Regards
Bhavesh
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HI Bhabesh,
Thanks for the response...
I Understand the options..
However the client is interested to evaluate options for using JDBC/JCO/Value mapping...
We want to refer to some standard SAP documentations on these if possible.
If you have anything like that then can u please share.
There is one more major concern -- on handling large volume of data in XI. They are expecting 30000 messages a day... Do you have any docs where it says how XI performs with large volume. I know it can , as we used it ..... but we like to refer to some <u>standard docs or Blogs</u> on this.
Another thing -- ))))))) --- There is a need for BPM handling large volumes and if it is possible to make the steps in BPM not to persist.
Thanks and waiting for your response..
HImadri
Himadri,
><i>However the client is interested to evaluate options for using JDBC/JCO/Value mapping...</i>
Do not use JCO directly. In this case you would need to hard code the server details, user id , password etc, if it is between JCO calls and RFC Lookup's alsywas use RFC Lookups.Dont have any SAP standard document though.
Regarding BPM and Transaction handling in BPM. This blog by Swen is really interresting,
/people/swen.conrad/blog/2006/12/22/xi-ccbpm-performance-under-perform-or-out-perform
Regarding the perfromance, you can use the Quick Sizer provided by SAP to understand the hardweare requirment and use it as a proof to go ahead with the volume question.
http://service.sap.com/quicksizer
Regards
Bhavesh
Hi Himadri,
These documents may help u
The all in 1
/people/alessandro.guarneri/blog/2006/03/27/sap-xi-lookup-api-the-killer
Lookups in XI
/people/siva.maranani/blog/2005/08/23/lookup146s-in-xi-made-simpler
For the RFC lookup
/people/sravya.talanki2/blog/2005/12/21/use-this-crazy-piece-for-any-rfc-mapping-lookups
RFC lookup BC to XI
/people/michal.krawczyk2/blog/2005/09/15/xi-rfc-mapping-lookups-from-bc-to-xi
Regards,
Prateek
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Hi,
Please see the below links
/people/siva.maranani/blog/2005/08/23/lookup146s-in-xi-made-simpler
Regards
Chilla..
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