It is no secret that WordPress has a special API that makes it easy to store temporary cached data in your database for a certain period of time and have them removed when they expire. Managing WP transients is much easier with plugins such as Transients Manager. This tool lets you view all entries in your database and delete any one you like.
You can search transients by name, edit value/name/expiration for each, and suspend updates with the click of a button. You will also be able to delete transients, including the ones without an expiration.
Thanks to this plugin, you can search, edit, and delete transients without breaking a sweat. You can try it for free.