The core is based on 11 database tables: $wpdb->posts – basic posts, pages and other post types info; $wpdb->postmeta – extra posts, pages and other post types info; $wpdb->comments – basic comments info; $wpdb->commentmeta – extra comments info; $wpdb->links – links info; $wpdb->options – options info; $wpdb->users – basic user info; $wpdb->usermeta – extra user … Continue reading WordPress database schema