Any resource on plain SQL can give you the solution.  Base can not help you
by any means to compose any non-trivial query. Once you have a working query
against your database you build your report based on that query.
Most likely the query will include the GROUP BY statement and 2 instances of
your table to get the difference value.

--
View this message in context: 
http://nabble.documentfoundation.org/Base-SQL-help-tp3627698p3628654.html
Sent from the Users mailing list archive at Nabble.com.

-- 
For unsubscribe instructions e-mail to: [email protected]
Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/
Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette
List archive: http://listarchives.libreoffice.org/global/users/
All messages sent to this list will be publicly archived and cannot be deleted

Reply via email to