>> What free database you use in your Java application on Linux
>> platform? which tool you use for its editing?
> MySQL - works great cheers
... But MySQL is only free if you license your application under the
GPL. If that isn't the case, you have to pay as much as $495/copy for
it. <http://www.mysql.com/products/licensing.html>
In contrast, nobody is charging fees for PostgreSQL or Firebird.

Signature
let name="aa454" and tld="freenet.carleton.ca" in name ^ "@" ^ tld;;
http://cbbrowne.com/info/rdbms.html
If the odds are a million to one against something occuring, chances
are 50-50 it will.