I am using oracle and I am recieving this error:
Could not convert database value \"17-NOV-11 12.17.33 AM\" to Doctrine Type datetime. Expected format: Y-
I think this link will help you :
Connecting to Oracle with Symfony2 and Doctrine 2.
https://gist.github.com/johnkary/6481664#file-oracledoctrinetypemappinglistener-php