ODI: Can I create join link between the source Files?

I have a few flat files that has foreign key relationships to each other, and I put them as source files, and try to import data to Essbase from them. and I got the error message: The source data server has no join capacilities. But if I just put all of the informations inside one flat file, the transferring is successful. It seems I cannot put "joins" on the source flat files. Please advise,thanks!

Hi,
You can join tables in your source area, even if they are flat files.
The joins will be done in a staging area, depending on the size of the files and the location of the agent you are running it can define where you want the staging area to be.
If the files are small and the joins are not complex then it can be done using the memory engine, otherwise in most circumstances I would use the power of a relational engine such as Oracle/SQL server as the staging area.
Make sure you use a staging area for the interface or you will get the error messages, also on the joins make sure they are done in the staging area, there will be an option when you highlight the join
Cheers
John
http://john-goodwin.blogspot.com/

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