Hi,
by UDF YES, and UDF can by created by external table.
For this, see firebird.conf paramater

#UdfAccess = Restrict UDF

and

#ExternalFileAccess = None

Slavek


-----Original Message-----
From: firebird-support@yahoogroups.com
[mailto:firebird-support@yahoogroups.com] On Behalf Of mlq97
Sent: Wednesday, June 11, 2008 4:17 PM
To: firebird-support@yahoogroups.com
Subject: [firebird-support] Can a Firebird trigger or SP cause an external
executable file to run?



Is this possible?
Thanks
Mitch







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