RE: Elementary question about triggers

From: Jamadagni, Rajendra <Rajendra.Jamadagni_at_espn.com>
Date: Mon, 14 Oct 2002 10:23:30 -0800
Message-ID: <F001.004E83B2.20021014102330@fatcity.com>

Basics:
1. Delete trigger doesn't delete the row, the DELETE command does it. 2. DELETE command invokes the delete trigger (if the trigger conditions are met).

Solution:
1. Revoke delete priv so no deleted can take place. 2. Create a before-delete trigger and raise application error so that user application receives error and transaction will rollback.

Raj

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Rajendra Jamadagni MIS, ESPN Inc.
Rajendra dot Jamadagni at ESPN dot com
Any opinion expressed here is personal and doesn't reflect that of ESPN Inc.

QOTD: Any clod can have facts, but having an opinion is an art!

-----Original Message-----
Sent: Monday, October 14, 2002 2:14 PM
To: Multiple recipients of list ORACLE-L

Dear Listers,

I hope you won't mind a question that (I think) looks unfit for this list:

"Can we prevent a delete trigger from deleting a row?"

To make it clear, here's the code for a trigger:

CREATE OR REPLACE TRIGGER temp_trig BEFORE DELETE ON temp_tab FOR EACH ROW

        ???

END; What statement should I write in the PL/SQL block, that will prevent the deletion of the row.

Thanks & regards,
Charu.

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Author: Jamadagni, Rajendra
  INET: Rajendra.Jamadagni_at_espn.com

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To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Mon Oct 14 2002 - 13:23:30 CDT