EnterpriseDB has made release 2 of its open-source database available, less than three months after the release of its first version.

The software, built on PostgreSQL, lets you run unmodified Oracle apps and includes various improvements and enhancements to the basic PostgreSQL but at a tenth of the cost of an Oracle database, the company claims.

CEO Andy Astor said EnterpriseDB had pledged to incorporate PostgresSQL updates whenever it upgrades its software. A new version of PostgresSQL is expected in the next few weeks.

The company also claims a 30 percent performance boost thanks to a bulk data loading technique, better packaging for use by independent software vendors and integration with JasperReports, an open source reporting technology. Astor said it had also improved migration from Oracle databases.

The software is free to download for development and is free for production use for one CPU with up to 1GB of RAM and 4GB of data. After that, it costs $1,000 to $5,000 a year per CPU depending on the level of support and services required.

To date, there have been more than 40,000 downloads of the company's software, half by large companies. EnterpriseDB is targeting large enterprises and processing-intense applications, whereas other popular open database software such as MySQL tends to be aimed at lighter weight apps.