Wordpress Core
The term item here means a very specific type of data to be cleaned. Each item is basically presented as rows in different categories, and here...
Post Types
In the WordPress database, one of the most heavily and intensively used tables is the posts table. It contains virtually all your content, and WordPress constantly queries...
Tables
This section is more about reducing the size of your database than directly enhancing its performance (even though the two are somewhat correlated). Database Cleaner will try to...
Options
The Pro Version of Database Cleaner recognizes the options of 5,000 different plugins. You’ll need a bit of patience to tackle this section—but it’s worth...
Metadata
In WordPress, your posts and users have additional information related to them, but this data is not stored directly within the post or user entries....
Cron Jobs
Database Cleaner can also list and show you all the cron jobs on your server. Cron jobs are entries in your database that WordPress checks against their...
Custom Queries
For anything that is not natively part of Database Cleaner, you can create your own cleaning query—just like the ones handled in the WordPress Core...