Grab The Biggest Deal
of The Year

How to Fix the WordPress Error Establishing a Database Connection

How to Fix the WordPress Error Establishing a Database Connection

Are you seeing the ‘Error establishing a database connection’ notice on your WordPress website? It is a fatal error that makes your WordPress website inaccessible to users.

This error occurs when WordPress is unable to make a connection to the database. A number of things can affect your WordPress database connection which makes it a bit difficult for beginners to troubleshoot.

In this article, we will show you how to easily fix the error by establishing a database connection in WordPress.

What Causes Error Establishing a Database Connection in WordPress?

The ‘Error establishing a database connection issue can be caused by incorrect database information in your WordPress settings, corrupt database, or an irresponsive database server.

wordpress themes, wordpress plugins, crm wordpress, nextwoo, next addons, next3, amazon s3 console, amzon web service, Elementor, Gutenberg, woocommerce, amazon affiliate program, next campaign, email campaign, subscriber & newsletter, next social

A database is software that makes it easy to store, organize, and retrieve data into other software.

As a content management system, WordPress uses a database to store all your content and other website data. It then connects to the database each time someone visits your website.

WordPress needs the following information for connecting to the database:

  1. Database name
  2. Database username
  3. Database password
  4. Database Host
  5. Database Prefix
wordpress themes, wordpress plugins, crm wordpress, nextwoo, next addons, next3, amazon s3 console, amzon web service, Elementor, Gutenberg, woocommerce, amazon affiliate program, next campaign, email campaign, subscriber & newsletter, next social

This information is stored in your WordPress configuration file called wp-config.php.

If any of these items are incorrect, WordPress would fail to connect to your database server, and you’ll see the ‘Error establishing a database connection error.

It is one of the most common WordPress errors. Apart from incorrect credentials, this error can also appear if the database server is down, or the database files are corrupt.

Let’s take a look at how to fix errors establishing database connection issues in WordPress with step-by-step troubleshooting.

1. Check Your WordPress Database Credentials

The most common reason for database connection errors in WordPress is incorrect database credentials. If you have recently moved your WordPress site to a new host, then this could be the most likely reason.

Your WordPress database credentials are stored in the wp-config.php file. It is the WordPress configuration file that contains important WordPress settings including database information.

If you have not edited wp-config.php file before, then take a look at our guide on how to edit wp-config.php file in WordPress.

You’ll be looking for the following lnes in the wp-config.php file.

// ** MySQL settings - You can get this info from your web host ** //

/** The name of the database for WordPress */

define( 'DB_NAME', 'database_name_here' );

/** MySQL database username */

define( 'DB_USER', 'username_here' );

/** MySQL database password */

define( 'DB_PASSWORD', 'password_here' );

/** MySQL hostname */

define( 'DB_HOST', 'localhost' );

You need to make sure that the information for the database name, username, password, and database host is correct.

You can confirm this information from your WordPress hosting account dashboard. Simply log in to your hosting account and click on MySQL databases under the database section.

wordpress themes, wordpress plugins, crm wordpress, nextwoo, next addons, next3, amazon s3 console, amzon web service, Elementor, Gutenberg, woocommerce, amazon affiliate program, next campaign, email campaign, subscriber & newsletter, next social

This will take you to the database management page in your hosting dashboard. From here, you can find out your database name and username.

wordpress themes, wordpress plugins, crm wordpress, nextwoo, next addons, next3, amazon s3 console, amzon web service, Elementor, Gutenberg, woocommerce, amazon affiliate program, next campaign, email campaign, subscriber & newsletter, next social

Below that you will find the database users and links to change the user password.

wordpress themes, wordpress plugins, crm wordpress, nextwoo, next addons, next3, amazon s3 console, amzon web service, Elementor, Gutenberg, woocommerce, amazon affiliate program, next campaign, email campaign, subscriber & newsletter, next social

Once you have confirmed your database name, username, and password, you can change that information in your wp-config.php file if needed.

After that, try visiting your website again to see if the database connection error has gone.

If you can still see the error, then this means that something else is wrong. Continue reading for more troubleshooting steps.

2. Check Your Database Host Information

If you are confident that your database name, username, and password information is correct, then you may want to make sure that you are using the correct database host information.

Most WordPress hosting companies use localhost as your database host. However, some managed WordPress hosting companies use separate servers to host databases. In that case, your database host information will not be localhost.

You need to contact your WordPress hosting company to confirm your database host information.

3. Repair WordPress Database

If you are getting a different error on the wp-admin, for instance, something like “One or more database tables are unavailable. The database may need to be repaired”, then you need to repair your database.

You can do this by adding the following line in your wp-config.php file. Make sure to add it just before ‘That’s all, stop editing! Happy blogging’ line wp-config.php.

define('WP_ALLOW_REPAIR', true);

Once you have done that, you can see the settings by visiting this page: http://www.yoursite.com/wp-admin/maint/repair.php

wordpress themes, wordpress plugins, crm wordpress, nextwoo, next addons, next3, amazon s3 console, amzon web service, Elementor, Gutenberg, woocommerce, amazon affiliate program, next campaign, email campaign, subscriber & newsletter, next social

4. Check if Your Database Server is Down

If everything seems to be correct, and WordPress still cannot connect to the database, then your database server (MySQL server) may be down.

This could happen due to heavy traffic on a server. Basically, your host server just cannot handle the load (especially when you are on shared hosting).

Your site will get really slow and for some users it may even output the error. So the best thing you should do is get on the phone or live chat with your hosting provider and ask them if your MySQL server is responsive.

If you have other websites running on the same server, then you can check those sites to confirm that your SQL server is down.

If you can connect, then we need to verify if your database user has sufficient permission. Create a new file called testconnection.php and paste the following code in it:

<?php
    $link= mysqli_connect('localhost', 'username', 'password');
    if(!$link) {
      die('Could not connect: '. mysqli_error());
    } 
    echo'Connected successfully';
    mysqli_close($link);
?>

Make sure to replace the username and password. You can now upload this file to your website and access it via web browser.

Other Solutions That Have Worked for Users

If the above-mentioned troubleshooting tips failed to fix the database connection error on your website, then you may try these additional steps.

1. Update WordPress Site URL

Try updating the WordPress site URL using phpMyAdmin. Simply access phpMyAdmin from your hosting account dashboard, and select your WordPress database.

wordpress themes, wordpress plugins, crm wordpress, nextwoo, next addons, next3, amazon s3 console, amzon web service, Elementor, Gutenberg, woocommerce, amazon affiliate program, next campaign, email campaign, subscriber & newsletter, next social

After that click on the SQL menu on the top and enter the following MySQL query.

UPDATE wp_options SET option_value='YOUR_SITE_URL' WHERE option_name='siteurl'

Don’t forget to provide your own site URL and change wp_options to your own table name as you may have changed the WordPress table prefix.

2. Rebooting Web Server

Users on dedicated servers, local servers, and virtual private servers (VPS) can try rebooting their servers.

This will restart your web and database server which may fix some temporary glitches causing the error.

If you liked this article, then please subscribe to our YouTube Channel for WordPress video tutorials. You can also find us on Twitter and Facebook.

Written by

William Jhonson

Leave a Reply

Your email address will not be published. Required fields are marked *