First up, there’s a plugin, rss_admin_db_manager by Rob Sable AKA Wilshire One

However, as Rob’s no longer working with this, it needs a tweak to work with the current TextPattern version, as described in the forum and solved by Colak

Finally, there’s a wall-through at Graphic Push NB There’s a key part written as a comment:

1. Navigate to Admin > Preferences > Basic. Verify “Site URL.”
2. Navigate to Admin > Preferences > Advanced. Verify “File directory path” and “Temporary directory path.”
3. Navigate to Extensions > DB Backup; modify “msqldump” and “mysql” paths if needed.
4. Navigate to Extensions > DB Manager, and Repair all tables.
5. Navigate to Admin > Diagnostics. View “Pre-flight check.”
6. Select “View Site.”