As the name itself suggests, once you download and install this plugin, you’ll be able to back up all your wordpress database files, tables and all other custom data that you should have on your wordpress., which come under similar database.
Why do you need this plugin ?
You mostly have your wordpress hosted on hired server, even if you own a server, you are never sure about the reliablility of those machines. It’s better to periodically take a back up, just in case if something goes wrong with the server where your DB is stored, then you’ll be able to restore you site back to normalcy.
Who should install this plugin ?
My take is, everyone ! But again, it is one of the most essential WordPress plugin for all those sites which are hosted on a server that do not take regular back ups.
Where can I download the WordPress DB back up plugin from ?
The WordPress DB backup plugin can be downloaded from here.