There are three databases in JReport Server: system, realm, and profiling. The system database holds resources of the global server scope, such as server.properties, global NLS, and so on. The realm database holds information of folders, nodes, versions, the security system, and the completed table. The profiling database holds server runtime related information. The realm database is necessary in order to run JReport Server. For best performance, you may want to configure the realm and profiling databases separately, depending on your environment.
When you install JReport Server, a dbconfig.xml file is automatically created in the directory <install_root>\bin. The database configuration information is stored in this configuration file. You can configure your database by using the dbconfig.xml file.
These databases have been tested workable as the server database: Apache Derby, HSQLDB, MySQL, Microsoft SQL Server, IBM DB2, Oracle, Sybase, and Informix.
This section presents the ways of configuring a server database for JReport Server in two different environments. Also, you can specify a table space in the database configuration for JReport Server to create tables in it.
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