How to Delete Orphan Tables from WordPress Database?

First, install and activate Advanced Database Cleaner on your site. This plugin removes orphaned data from your site like old revisions, old drafts, unused database tables etc.

Once the plugin is activated, it will add a new menu item to your WordPress dashboard with WP DB Cleaner. Just click on it. This will take you to the plugin's settings page.

Here go to Tables tab and click on Detect orphan tables. It will start detecting unused database tables.

Check Unused Database Tables and select Delete option from the drop-down menu then hit on Apply button.

Congratulations! Advanced Database Cleaner removed your database
orphan tables have been deleted.