13 Removing Oracle Database Software

These topics describe how to remove Oracle software and configuration files.

Use the deinstall command that is included in Oracle homes to remove Oracle software. Oracle does not support the removal of individual products or components.

Caution:

If you have a standalone database on a node in a cluster, and if you have multiple databases with the same global database name (GDN), then you cannot use the deinstall command to remove one database only.

• About Oracle Deinstallation Options
  You can stop and remove Oracle Database software and components in an Oracle Database home with the deinstall command.
• Oracle Deinstallation (Deinstall)
  You can run the deinstall command from an Oracle home directory after installation.
• Deinstallation Examples for Oracle Database
  Use these examples to help you understand how to run the deinstall command.
• Downgrading Oracle Restart
  Use this procedure to deconfigure and downgrade Oracle Restart, or to troubleshoot Oracle Restart installation errors.
• Removing an RPM-based Oracle Database Installation
  Use this procedure to remove and deinstall a database installed using the yum command.
• Deinstalling Previous Release Grid Home
  Use this procedure to deinstall the previous release Grid home.