Installation (11g)
Installation Steps for Oracle database 11.x:
Start > Programs > Oracle - [HOME_NAME] > Database Administration > Database Configuration Assistant
Connect as sysdba (usually user “sys”)
Click on bottom right button (Standard Database Components)
Choose „Oracle JVM“, „Oracle XML DB“ and „Oracle Multimedia“ and finish dialog. To see if Oracle Locator has been successfully installed, check for User/Schema “MDSYS” in database.