<oracle.manageddataaccess.client>
    <version number="*">
      <dataSources>
        <dataSource alias="appconfigalias" descriptor="(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)
                    (PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ORCL))) " />
      </dataSources>
    </version>
  </oracle.manageddataaccess.client>