Hi,
In the deploytool, expand the tree node from your application. Click on one of the EJB's. In the panel on the right side, click on the "Entity" tab. Then click on the "deployment settings" button. If the button "Generate Default SQL" is enabled, click on it. If the button "Generate Default SQL" is not enabled, click on the button "Database Settings...". Fill in your database connection info and click on "Generate SQL now".
Repeat this process for all your EJB's.
Hope this helps,
Kurt.