Dear list

I'm wondering whether you would advise to store data objects which have a many-to-many relationship in a repository instead of a RDBMS.

The challenge I see is to do queries against the repository for such a data 
model.

I'd like to query something like

'SELECT prof.name, student.name FROM prof, student WHERE prof.id=student.profId'

Are Joins supported in level 1 repositories?
Are they supported in Jackrabbit?
Is there a natural way to formulate this kind of query in XPATH?


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Cheers,
Michael

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