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.
      The main steps for
      configuring database connectivity are: