Guillaume, There are a number of steps you need to take: 1. create your own database object create script. 2. create a hibernate mapping for your oracle DB (there are some differences in the Oracle and MySQL data types). 3. create a hibernate configuration file. 4. you may need to create some custom types to handle Oracle BLOBs or CLOBs depending on the Oracle version and JDBC drivers being used. I posted some messages giving more detail earlier this year - I suggest you visit the archive and review those messages. Regards, John Turner _____ From: Guillaume François [mailto:[email protected]] Sent: Wednesday, 21 June 2006 9:30 PM To: [email protected] Subject: [xwiki-users] Xwiki and Oracle Hye, i'm trying to get working Xwiki with oracle. This works good with MySQL, but when I switch to Oracle this doesn't work. I can connect to xwiki. Someone could help me ?