Subject Re: EXECUTE STATEMENT ON EXTERNAL 'ODBC://odbc_datasource_name'
@Dmitry and Mark
Thank you for the explanation.

About posting questions on Firebird 3.0 - as long as it isn't final - is also clear to me.
Thank you, but sometimes it's hard to understand for non-project-members to know where to post:
As the firebird-devel mailinglist also get posts that belong in 'support' and the firebird website states 'Firebird-support  (if you don't know where to ask, ask here!)', I thought this one is probably the best.