Download and apply required patches for your software release after completing your initial installation.

• Downloading and Installing Patch Updates
  Download and install patch updates for your Oracle software after you complete installation.
• Unlocking and Resetting Oracle Database User Passwords
  Passwords for all Oracle system administration accounts except SYS, SYSTEM, and DBSMP are revoked after installation. Before you use a locked account, you must unlock it and reset its password.