In WebLogic Server, you configure database connectivity through JDBC data sources, either in your WebLogic domain configuration or in your enterprise application. A data source is a Java EE standard method of configuring connectivity to a database. Each WebLogic data source contains a pool of database connections. Applications look up the data source on the JNDI tree or in the local application context and then use a database connection from the pool of connections. Data sources and their connection pools provide connection management processes that help keep your system running efficiently.