Major commercial database developers have set a trend of offering “Express” versions of their databases. Companies such as Microsoft, Oracle and IBM DB2 are a part of this trend setting. Microsoft has a program called SQL Express which has the following features; SQL Server Configuration Manager, Replication, Advanced Query Optimizer, SMO/RMO, Sqlcmd, and Integration with Visual Studio 2005. SQL Express all has snapshot isolation level features, Native XML support, SQL language support-Multiple Active Result Sets (MARS), and Dedicated Admin Connection-Import/Export Wizard. These features are different than that of Oracles express version. Some of the software limitations include a 1GB maximum memory, the maximum size of each relational database.
Oracle Express is Oracle’s express edition of their SQL database. This edition has many different features that can be used. Some of those features include; Interactive reports, Declarative BLOB support, Enhanced report printing, adding to the theme repository, Optional runtime-only installation, improved security, Application date format, and Application builder refinements. These features are used to create