Clean up database by deleting orphaned items such as ‘old revisions’, ‘spam comments’, optimize database and more…
If you have been using WordPress for a while, then you should think absolutely about a database cleanup. Indeed, your database may be full of garbage that makes your site sluggish and bloated such as old revisions, orphaned post meta, spam comments, etc. You should clean-up this unnecessary data to reduce your database size and improve website speed and performance. In addition, you will have quicker database backup since the file of your backup will be smaller.
‘Advanced Database Cleaner’ is a must-have plugin that allows you to clean database, optimize database and more.
Get and overview: The plugin will help you get an overview of what is happening in your database. It will report all unused/orphaned items that should be cleaned, it will give you the number of tables/options/tasks you have, etc. This way, you can control your database if anything goes wrong
Save time: You can specify what items should be cleaned/optimized/repaired, what is the number of days’ data to keep and the cleanup/optimization/reparation frequency. The plugin will then automate the process to run automatically based on your settings
Save space: By deleting unused/orphaned items, you will save space in your database and make quicker backups since the file of your backup will be smaller
Do you know that even after deleting a plugin/theme from your WordPress website, some of its leftovers may remain in your database? Such as orphan options, orphan tables, and orphan cron tasks. As you may know, not all plugins/themes care about the housekeeping of your WordPress database. As long as you are removing plugins/themes, leftovers will be accumulated in your database and will influence your website performance. The Pro version of Advanced Database Cleaner will help you remove all those leftovers and perform a deep database clean up. In the pro version you can:
You are welcome to contribute to the plugin translation via the WordPress translation website.
This section describes how to install the plugin. In general, there are 3 ways to install this plugin like any other WordPress plugin.
As you use WordPress, your database accumulates a lot of extra data such as revisions, spam comments, trashed comments, etc. Removing this unnecessary data will reduce your database size, speeds up your backup process and speeds up your site also.
Yes, it is. We do not run any code that can break down your site or delete your posts, pages, comments, etc. However, make sure to always back up your database before any cleanup. This is not optional; it is required! It is always better to be safe than sorry!
Optimizing your database will reclaim unused space in your tables, which will reduce storage space and improve efficiency when accessing tables. Optimizing the database can sometimes significantly improve performance, particularly on sites that receive a lot of traffic or have a large amount of content. Optimizing your database is absolutely safe.
A scheduled task enables plugins to execute some actions at specified times, without having to manually execute code at that time. WordPress itself uses some scheduled tasks to perform some regular actions. However, some scheduled tasks may not be removed even if the responsible plugins are deleted from your WordPress installation. As you know, not all plugins care about the housekeeping of your WordPress. Hence, deleting these unnecessary tasks may help in cleaning your site. It should be noted that cleaning scheduled tasks is safe as long as you know what tasks to clean. If you are not sure, it is better to not clean any task.
WordPress stores a record (called “revision”) of each saved draft or published update. This system allows you to see what changes were made in each post and page over time. However, this can lead to a lot of unnecessary overhead in your WordPress database, which consumes a lot of space. The sql query used by the plugin to clean all revisions is:
DELETE FROM posts WHERE post_type = ‘revision’
WordPress automatically saves your post/page while you are editing it. This is called an auto-draft. If you don’t hit the publish/update button, then the post/page will be saved as auto-draft and any modification to your post/page will not be visible in your public site. Over time, you could have multiple auto-drafts that you will never publish and hence you can clean them. The sql query used by the plugin to clean all auto-drafts is:
DELETE FROM posts WHERE post_status = ‘auto-draft’
Pending comments are comments published by users and which are waiting for your approval before appearing in your site. In some cases, you will have to clean all these comments. The sql query used by the plugin to clean all pending comments is:
DELETE FROM comments WHERE comment_approved = ‘0’
It is a comment that you (or a plugin) have marked as spam. The sql query used by the plugin to clean all spam comments is:
DELETE FROM comments WHERE comment_approved = ‘spam’
A trash comment is a comment that you have deleted from your WordPress and have been moved to the trash. A trash comment is not visible in your site and should be deleted forever. The sql query used by the plugin to clean all trash comments is:
DELETE FROM comments WHERE comment_approved = ‘trash’
Trackbacks allows you to notify other websites owners that you have linked to their article on your website. These trackbacks can be used to send huge amounts of spam. Spammers use them to get their links posted on as many sites as possible. That is why they should be deactivated/cleaned if you do not use them. The sql query used by the plugin to clean trackbacks is:
DELETE FROM comments WHERE comment_type = ‘trackback’
Pingbacks allow you to notify other websites owners that you have linked to their article on your website. Pingbacks were designed to solve some of the problems that people saw with trackbacks. Although there are some minor technical differences, a trackback is basically the same things as a pingback. These pingbacks can be used to send huge amounts of spam. Spammers use them to get their links posted on as many sites as possible. That is why they should be deactivated/cleaned if you do not use them. The sql query used by the plugin to clean pingbacks is:
DELETE FROM comments WHERE comment_type = ‘pingback’
The post meta data is the information you provide to viewers about each post. This information usually includes the author of the post, when it was written (or posted), and how the author categorized that particular post. In some cases, some post meta data information becomes orphan and does not belong to any post. They are then called “orphan postmeta” and should be cleaned since they are not useful. The sql query used by the plugin to clean all orphan postmeta is:
DELETE pm FROM postmeta pm LEFT JOIN posts wp ON wp.ID = pm.post_id WHERE wp.ID IS NULL
The same as “Orphan post meta” with the exception that “orphan comment meta” concern comments and not posts. The sql query used by the plugin to clean all orphan comment meta is:
DELETE FROM commentmeta WHERE comment_id NOT IN (SELECT comment_id FROM comments)
The user meta data is the information you provide to viewers about each user. This information usually includes additional data that is not stored in the users table of WordPress. In some cases, some user meta data information becomes orphaned and does not belong to any user. They are then called “orphaned usermeta” and should be cleaned since they are not useful. The sql query used by the plugin to clean all orphan comment meta is:
DELETE FROM usermeta WHERE user_id NOT IN (SELECT ID FROM users)
The term meta data is the information that is provided for each taxonomy term. This information usually includes additional data that is not stored in the terms table of WordPress. In some cases, some term meta data information becomes orphaned and does not belong to any taxonomy term. They are then called “orphaned termmeta” and should be cleaned since they are not useful. The sql query used by the plugin to clean all orphan comment meta is:
DELETE FROM termmeta WHERE term_id NOT IN (SELECT term_id FROM terms)
Sometimes the wp_term_relationships table becomes bloated with many orphaned relationships. This happens particularly often if you’re using your site not as a blog but as some other type of content site where posts are deleted periodically. Over time, you could get thousands of term relationships for posts that no longer exist which consumes a lot of database space. The sql query used by the plugin to clean all orphan relationships is:
DELETE FROM term_relationships WHERE term_taxonomy_id=1 AND object_id NOT IN (SELECT id FROM posts)
Transients are a way of storing cached data in the WordPress DB temporarily by giving it a name and a time frame after which it will expire and be deleted. This helps improve WordPress performance and speed up your website while reducing the overall server load. Expired transients are transients that are expired and still exist in the database. These ones can be safely cleaned. Transients housekeeping is now part of WordPress core, as of version 4.9, so no need to clean up them manually unless you have specific needs.
Yes, it is compatible with multisite. It should be noted that only the main site in the network can clean the database and orphan items of all the network. We prevent other sites to clean your DB since we believe that only the super administrator has the right to perform such operation. Your database is precious!
Actually the plugin is not supposed to be compatible with SharDB, HyperDB or Multi-DB. We will try to make it compatible in the coming releases.
We do clean-up of your WordPress site, it will be a shame if the plugin does not clean itself after an uninstall! Of course yes, the plugin cleans itself and removes any data used to store its settings once uninstalled.
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