[Zope] Reporting in Zope

[Etienne Labuschagne]

Many reporting tools are available to generate reports from SQL databases 
(Crystal comes to mind).  Two of the gripes I have heard against object 
databases are:

1) They are hard to query (no powerful SQL like querying available - bound 
to what you defined in the catalog).
2) Creating reports are hard or there are no tools available (basically 
again a reporting problem).

Is there something in Zope to (really quickly) create generic type reports 
on the attributes of objects.

Eg. create a report where all the invoice objects' totals are above $100 
and the invoice has not been paid yet.

Yes, it's easy "to quickly write a script" to do it (for a programmer), but 
(so it was claimed) there are tools in SQL that would create the above 
query very quickly (5 minutes) and sometimes with drag and drop interfaces.

Are there something like that for Zope and what is the "best of breed" 
query/reporting product/s available for Zope.

Etienne