Create tables upon EJB deploy

[elvisd]

Hi all, sorry for so a basic question but I don't know how/where to set that upon ejb deployment to create/alter relative tables.
Thank you for answer

best regards

elvisd

[elvisd]

Hi i have solved this issue:

here my edited persistence.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<persistence>
 <persistence-unit name="gpConn">
 <jta-data-source>java:/gpConn</jta-data-source>
 <properties>
 <property name="hibernate.hbm2ddl.auto" value="create-drop"/>
 </properties>
 </persistence-unit>
</persistence>

note the property hibernate.hbm2ddl.auto...

where can i find possible values to set?