1.2 Application Maintenance

Application maintenance refers to installing, uninstalling, upgrading, or patching an application.

Perform application installation, upgrade, and patching operations using an ALTER PLUGGABLE DATABASE APPLICATION statement.

The basic steps for application maintenance are as follows:

1. Log in to the application root.
2. Begin the operation with an ALTER PLUGGABLE DATABASE APPLICATION ... BEGIN statement in the application root.
3. Execute the application maintenance statements.
4. End the operation with an ALTER PLUGGABLE DATABASE APPLICATION ... END statement.

These statements can be issued in the same user session or in different user sessions.

• Application Installation
  
• Application Upgrade
  An application upgrade is a major change to an installed application.