Comprehensive Guide: How to Fix WordPress "Error Establishing Database Connection" Issue

Error establishing database connection" means that your site cannot connect to the database. When you create a website using WordPress, all data is stored in a MySQL database, including posts, text, images, videos, settings, and user information. When a user visits the site, WordPress sends a request to the database via PHP.

If the website is unable to connect to the database server, the user will see an error message. This means that your website is not functioning properly because it cannot access the content stored in the database.

Causes of "Error establishing database connection"

Multiple issues can cause WordPress database connection errors. Understanding these causes can help you identify the root cause of the problem and use the appropriate steps to resolve the issue.

1. Incorrect database credentials
2. Database server issues
3. Database corruption
4. Exceeding database limits
5. WordPress File Corruption
6. Server configuration issues

How to fix "Error establishing database connection"

1,Check if the database server is down

• Log in to the hosting control panel.
• Find the database section, usually labeled "MySQL Database"or"phpMyAdmin".
• Access the database management tool to check if the database is listed and view its status.
• If the database is not listed or an error message appears, contact your hosting provider's support team to check the status of the MySQL server and restart the server.

2,Restore the latest backup

• Log in to your hosting provider account and find the Backup section.
• Locate the most recent backups of your database and website files, download and save them to your local computer.

• Use an FTP client to upload the backup file to the server.

• If the host provides automatic backups, select the most recent backup before the error occurred.
• After recovery, check if the site is back to normal.

3,Checking database credentials

• Access your website files using an FTP client or the file manager of your hosting control panel.
• Find the wp-config.php file and open it for editing.

• Verify the following database credentials: database name, username, password, and host.
• Log in to your hosting account to compare and verify that these credentials are correct.
• After correcting any errors, save the wp-config.php file.

4,Repair corrupt WordPress database

• Open the wp-config.php file using an FTP client or the file manager of your hosting control panel.
• exist /* That's all, stop editing! Happy blogging. */ Add the following line of code before it:

<code>define('WP_ALLOW_REPAIR', true);</code>
<code>define('WP_ALLOW_REPAIR', true);</code>
define('WP_ALLOW_REPAIR', true);
define('WP_ALLOW_REPAIR', true);
define('WP_ALLOW_REPAIR', true);

• Access in browser http://yourwebsite.com/wp-admin/maint/repair.phpThe

• Click Repair Database and remove the added lines of code from the wp-config.php file when finished.

5. Create a new database

• Visit cPanel and look for the "MySQL Database" section.
• Create a new database and a new database user and grant all permissions.
• Open the wp-config.php file via FTP or the control panel's file manager and update the following lines with the new database details:

define('DB_NAME', 'new_database_name');
define('DB_USER', 'new_database_username'); define('DB_PASSWORD', 'new_database_password')
define('DB_PASSWORD', 'new_database_password'); define('DB_HOST', 'local_database_password')
define('DB_HOST', 'localhost'); // Or the host provided by your server
define('DB_NAME', 'new_database_name');
define('DB_USER', 'new_database_username'); define('DB_PASSWORD', 'new_database_password')
define('DB_PASSWORD', 'new_database_password'); define('DB_HOST', 'local_database_password')
define('DB_HOST', 'localhost'); // Or the host provided by your server
define('DB_NAME', 'new_database_name');
define('DB_USER', 'new_database_username'); define('DB_PASSWORD', 'new_database_password')
define('DB_PASSWORD', 'new_database_password'); define('DB_HOST', 'local_database_password')
define('DB_HOST', 'localhost'); // Or the host provided by your server

• Save changes.

6,Update WordPress Website URL

• Log into your hosting control panel, navigate to phpMyAdmin and select your WordPress database.

• Look in the wp_options table and check the siteurl and home values to make sure they match the actual site URL.
• If this is not correct, open the wp-config.php file and add the following lines:

<code>define('WP_HOME', 'http://yourwebsite.com'); define('WP_SITEURL', 'http://yourwebsite.com').</code>
<code>define('WP_HOME', 'http://yourwebsite.com'); define('WP_SITEURL', 'http://yourwebsite.com').</code>
define('WP_HOME', 'http://yourwebsite.com'); define('WP_SITEURL', 'http://yourwebsite.com').
define('WP_HOME', 'http://yourwebsite.com'); define('WP_SITEURL', 'http://yourwebsite.com').
define('WP_HOME', 'http://yourwebsite.com'); define('WP_SITEURL', 'http://yourwebsite.com').

• Save changes.

7,Checking database host information

Access the wp-config.php file using an FTP client or the file manager of your hosting control panel.

Locate the following line and verify that the database host information is correct:

<code>define('DB_HOST', 'localhost');</code>
<code>define('DB_HOST', 'localhost');</code>
define('DB_HOST', 'localhost');
define('DB_HOST', 'localhost');
define('DB_HOST', 'localhost');

• If the hosting provider specifies a different host, update the DB_HOST value in wp-config.php with the correct information:

<code>define('DB_HOST', 'correct host information');;</code>
<code>define('DB_HOST', 'correct host information');;</code>
define('DB_HOST', 'correct host information');;
define('DB_HOST', 'correct host information');;
define('DB_HOST', 'correct host information');;

• Save the changes and check if the site is back to normal.

Summary:

Error while establishing database connection" is a common problem encountered by WordPress users. Whether it's checking the database server status, restoring a backup, verifying database credentials, repairing a corrupted database, creating a new database, updating the website URL, or checking the database hosting information, these steps will help you find the root cause of the problem and fix it quickly. you find the root cause of the problem and fix it quickly.