💡 WordPress uses MySQL as its database management system. WordPress database is where all of the necessary website data is stored. Not just the basic information like usernames and passwords but posts, pages and comments, even the website theme and WordPress configuration settings.
Here you can find various SQL snippets and PHPMyAdmin tips.
![max connections - ⚠️ User already has more than 'max_user_connections' active connections [✅ SOLVED]](https://wpxss.com/application/wp-content/webp-express/webp-images/uploads/2022/09/max-connections.png.webp "⚠️ User already has more than 'max_user_connections' active connections [✅ SOLVED]")
Noticed a lot of Crawler errors on the Google Adsense console: So I enabled the WP_DEBUG and run a stress test with vegeta on the website: the website became unavailable and the following error was shown: User already has more than ‘max_user_connections’ active connections This explains the errors in Google SC because the crawler most … Read full article →
There are several ways you can optimize the MySQL database used by your WordPress site: Optimize tables Optimize all tables in your database: OPTIMIZE TABLE wp_posts, wp_comments, wp_options, wp_usermeta, wp_term_relationships, wp_term_taxonomy, wp_termmeta; Replace wp_ with the database prefix that you are using for your WordPress installation. Repair tables Repair any damaged tables in your database: … Read full article →
In this post I discussed an example where wp_options table had 900k rows of plugin-based data in it, causing the wp-admin dashboard to load slowly. As noted there, good coding practice is for each plugin to create its own database tables and use those instead of default WP tables. While the WordPress community actively improves … Read full article →
wp_postmeta table should be the biggest table in your database, if not, there is a problem. Read wp_actionscheduler_actions & wp_actionscheduler_logs tables When you install WordPress for the first time, tables are created in the database, for example for the wp_postmeta table: the problem? solution: On an existing tables, We can add high-performance keys that match … Read full article →
We occasionally find ourselves in a situation where we need to test the website first, then point the domain name if everything is in order. To achieve this there are multiple ways: Edit Hosts file on your local computer Use online service such as skipDNS Access WordPress using temporary server URL In this guide We … Read full article →
The SAVEQUERIES wp-config constant saves database queries to an array and We can use that array to display queries. The information saves each query, what function called it, and how long that query took to execute. To enable SAVEQUERIES add this to the wp-config.php file: Then in the footer of your theme put this: <?php … Read full article →
After a plugin is deinstalled from a WordPress website it will either remove all its data from the database or leave it in case the plugin is installed again. Upon deactivation, if the plugin’s data isn’t removed from the database you should manually remove it in order to optimize the database and get rid of … Read full article →
1. log in to the MySQL: mysql -u root -p; 2. Select the database: use database_name; 3. List all users: select * from wp_users\G 4. Change the password for the user you require: UPDATE wp_users SET user_pass=MD5(‘new_password_here’) where ID=user_id_here;
In this example, I’m using ID 14988 Using Media Library If you are logged in as admin, add the media ID in the website URL: then copy the file URL: Using SQL Using WPCLI or
WooCommerce plugin uses the wp_actionsscheduler_actions table in the database to log scheduled actions such as cron’s running, product synchronization, upgrade, etc. These actions should be deleted once they are executed but this doesn’t always happen, in most cases, this table uses an InnoDB database engine with a row-level locking feature meaning that multiple queries can … Read full article →