Free SQL databases

Free versions include:
PostgreSQL - always free
MySQL - Community Edition falls under the GPL license. Don’t sell it to your customer or alter the source code.
10g Express is Oracle’s free database.
IBM offers DB Express Community Edition
Microsoft offers SQL Server Express Edition

More details about the restrictions on our web site.

Propose to add to this list of Firebird RDBMS: http://www.firebirdsql.org/

The Database Module embeds a free SQL database engine into Ignition called H2. The database module is the easiest and fastest way to get started using SQL databases in Ignition.

Nick this looks pretty awesome. Does this save the database on the Gateway. Excuse my ignorance. Still learning SQL part of ignition.

Yes, it saves it on the same computer server that Ignition is installed. The DefaultH2 database that is automatically created for you is located in the Ignition folder here: Ignition/data/db/userdbs/default

When you make a new datasource you can store your database anywhere you want on the computer. See the documentation for more information: http://doc.perfectabstractions.com/modules/database/