Free to develop, deploy, and distribute


Oracle Database 11g Express Edition (Oracle Database XE) is an entry-level, small-footprint database based on the Oracle Database 11g Release 2 code base. It's free to develop, deploy, and distribute; fast to download; and simple to administer.

Oracle Database XE is a great starter database for:

Developers working on PHP, Java, .NET, XML, and Open Source applications

DBAs who need a free, starter database for training and deployment

Independent Software Vendors (ISVs) and hardware vendors who want a starter database to distribute free of charge

Educational institutions and students who need a free database for their curriculum

With Oracle Database XE, you can now develop and deploy applications with a powerful, proven, industry-leading infrastructure, and then upgrade when necessary without costly and complex migrations.

Oracle Database XE can be installed on any size host machine with any number of CPUs (one database per machine), but XE will store up to 11GB of user data, use up to 1GB of memory, and use one CPU on the host machine.

Download link: http://www.oracle.com/technetwork/products/express-edition/downloads/index.html