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From "Rick Hillegas (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-551) Allow invoking java stored procedures from inside a trigger. Make CALL a valid statement in the trigger body.
Date Fri, 02 Sep 2005 17:50:13 GMT
    [ http://issues.apache.org/jira/browse/DERBY-551?page=comments#action_12320915 ] 

Rick Hillegas commented on DERBY-551:
-------------------------------------

Cloudscape 3.5 allowed the CALL statement (procedure invocation) inside a trigger. So the
plumbing to do this is mostly already in the code. Does anyone know why this feature was dropped
from Derby and what problems we should watch out for if we re-enable it?

> Allow invoking java stored procedures from inside a trigger. Make CALL a valid statement
in the trigger body.
> -------------------------------------------------------------------------------------------------------------
>
>          Key: DERBY-551
>          URL: http://issues.apache.org/jira/browse/DERBY-551
>      Project: Derby
>         Type: New Feature
>   Components: SQL
>     Versions: 10.1.1.0
>  Environment: All platforms
>     Reporter: Satheesh Bandaram

>
> Derby currently doesn't allow CALL statement to be used in a trigger body. It would be
great to allow java stored procedure invocation inside a trigger. Since Derby doesn't have
SQL procedure language, triggers can only execute a single SQL statement. If we allow stored
procedures in triggers, it would be possible to write a trigger that involves more than just
one SQL statement. Functions are currently allowed, but they are read-only.
> I believe it is fairly easy to support this enhancement. Need good amount of testing
though.

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