RE: Logon Trigger on schema

From: GUILLAUMIN Bert Ext ROSI/SI CLIENT <bguillaumin.ext_at_francetelecom.com>
Date: Tue, 11 Apr 2006 10:52:33 +0200
Message-Id: <005e01c65d45$46668bd0$ab068c0a@lille.francetelecom.fr>

-----Message d'origine-----
De : Bertrand Guillaumin [mailto:bguillaumin.ext_at_francetelecom.com] Envoyé : jeudi 6 avril 2006 15:29
À : 'Oracle-L Freelists'
Objet : Logon Trigger on schema

Hi! I'm trying to use a logon trigger on a schema so that it will systematically have the skip_unusable_indexes set to true and parallel DML enabled(I have to use an app which sometimes disconnects and reconnects without any visible reason).

So I wrote this trigger :

SQL> CREATE OR REPLACE TRIGGER FC_ENABLE_PARALLEL_DML after LOGON ON SCHEMA   2 BEGIN
  3 EXECUTE IMMEDIATE 'ALTER SESSION ENABLE PARALLEL DML';   4 EXECUTE IMMEDIATE 'ALTER SESSION SET SKIP_UNUSABLE_INDEXES=TRUE';   5 END;
  6 /

DÚclencheur crÚÚ.

and created a table for testing purpose : SQL> CREATe TABLE T AS SELECT 1 as num FROM DUAL   2 /

Table crÚÚe.

SQL> CREATE INDEX I ON T(NUM)
  2 /

Index crÚÚ.

SQL> ALTER INDEX I UNUSABLE
  2 /

Index modifiÚ.

But the problem is, when I disconnect and reconnect via sqlplus and try to update an indexed column with the same user :

SQL> UPDATE T set NUM = 2;
UPDATE T set NUM = 2
*

ERREUR Ó la ligne 1 :
ORA-01502: index 'CP20DEV2.I' or partition is unusable

I'm working on 9.2.0.4.
Any hint or advice appreciated.

Regards,
Bertrand Guillaumin

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Received on Tue Apr 11 2006 - 03:52:33 CDT