Let’s take a look at one of the easiest ways to clean up and optimize your WordPress database.
- Although there are quite a few plugins available for this, we’re going to use the WP Clean Up plugin. From your blog dashboard, go to “Add New Plugin” and search for WP Clean Up. 
- After you’ve installed and activated the plugin, you’ll find it’s settings under your Settings menu. 
- This is where all of the magic happens. You’ll be able to see the types of data that can be deleted from your database: revisions, drafts, auto drafts, moderated comments, spam comments, trash comments. 
- Go through each one and delete the items that you want to get rid of. Alternately, you can just use the “Delete All” button. 
- Below that you can see each table in your database and how much space it’s taking up. Click on the “Optimize” button below it to clean and optimize your tables. 
- Once completed, if there was any optimization that could be done then you’ll know from the total KB number – it will be smaller. You’ve just cleaned and optimized your WordPress database. Wasn’t that easy?