You can deactivate an instance of the database by deconfiguring the instance. Deactivating an instance releases a license. After an instance is deconfigured, you can reconfigure it.
From the navigation pane, go to Protect > Databases.
The Instances page appears.
Click the instance.
The instance page appears.
In the upper-right area of the page, click the action button , and then click Deconfigure.
The Confirm deconfiguration dialog box appears.