Database management

DBMS compression: determining a table’s compression ratio

According to the Oracle documentation, the dbms_compression procedure allows to determine the compression ratio for a table without creating it. Let's have a look at it.

Bug while installing Oracle 11.2.0.1 on AIX 6.1 SP2

Last week I encountered the following problem while installing Oracle 11g R2 on AIX 6.1 TL06 SP2. I met all the PreReqs of the installation document, but at the end of the installation process, I got(…)

Getting rid of network acces issues after migrating to Oracle 11.2

Are you experiencing network access issues after a migration to Oracle Database 11g Release 2 (11.2)? If yes, you probably have to allow the concerned PL/SQL packages to access your network again. This posting will show you how.

Génération de XML : le format des dates

Aprés une migration de 10gR2 vers 11gR2, une application utilisant les packages DBMS_XMLQUERY pour générer des documents xml est en erreur. Le format des dates a changé qu'a fait le DBA ?(…)

Password Oracle : vos mots de passe sont-ils sécurisés ?

Quelles sont les faiblesses de l’encryption des mots de passe Oracle ? Comment est-ce qu’Oracle crée les clés de hachage afin d’en améliorer la sécurité ? C’est ce que je vous propose de découvrir dans ce post. Le mot de(…)

How to connect to an Oracle database using the perl DBI module and DBD::Oracle “as sysdba”?

Well, I have read many posts about this, but was unable to find a suitable solution up to now … Google was not my friend(…)