Edit a page/post DB data?

There is no built-in way to directly edit the database data for a page or its revisions in WordPress. However, you can achieve this by using a plugin such as WP-DB Manager, which provides a user-friendly interface for managing and editing your WordPress database. This plugin allows you to directly edit the database data for a page and its revisions, as well as perform other database management tasks like backing up, restoring, and optimizing your database.