Complete configuration tasks after you install Oracle Database.

Oracle recommends that you complete additional tasks immediately after installation. You must also complete product-specific configuration tasks before you use those products.

• Downloading and Installing Release Update Patches
  Download and install Release Updates (RU) and Release Update Revisions (RUR) patches for your Oracle software after you complete installation.
• Requirements for Database Password
  To secure your database, every password must satisfy the Oracle recommended password requirements, even the passwords for predefined user accounts.
• About Installing Oracle Autonomous Health Framework
  Install the latest version of Oracle Autonomous Health Framework to perform proactive heath checks and collect diagnostics data for the Oracle software stack.
• Recompiling Invalid Objects on Windows Systems
  Run the utlrp.sql script after you install, patch, or upgrade a database, to identify, and recompile invalid objects.
• Configuring the Secure Sockets Layer
  Oracle highly recommends that you configure and use a Secure Sockets Layer (SSL) to ensure that passwords and other sensitive data are not transmitted in clear text in HTTP requests.
• Configuring Oracle Components
  Many Oracle products and options must be configured before you use them for the first time.
• Creating a Fast Recovery Area Disk Group
  During installation, by default you can create multiple disk groups.
• Enabling and Disabling Database Options After Installation
  When you install Oracle Database, some options are enabled and the others disabled. You can view the enabled Oracle Database options by querying the V$OPTION view using SQL*Plus.
• Changing the Oracle Home User Password
  Oracle Home User Control is a command-line utility that allows an administrator to update the password for an Oracle Home User.