WordPress needs the following information for connecting to the database:
- Database name
- Database username
- Database password
- Database Host
- Database Prefix
One of the most common WordPress mistakes is this. This error can also display if the database server is offline or the database files are faulty, in addition to invalid credentials.
With step-by-step debugging, let’s look at how to fix difficulties establishing database connection issues with WordPress.
1. Check Your WordPress Database Credentials
Incorrect database credentials are the most prevalent cause of database connection failures in WordPress. This is most likely the case if you have recently relocated your WordPress site to a new host.
The following lines should be found in the wp-config.php file.
2. Check Your Database Host Information
If you’re positive that your database name, username, and password are accurate, you should double-check that you’re using the correct database host information.
Localhost is the database host used by the majority of WordPress hosting businesses. Some managed WordPress hosting companies, on the other hand, host databases on different servers. Your database host information will not be localhost in that scenario.
3. Repair WordPress Database
If you see a different issue in wp-admin, such as “One or more database tables are unavailable,” here is what you should do. If you receive the message “The database may need to be repaired,” you must repair your database.
Add the following line to your wp-config.php file to do this. Make sure it’s right before ‘That’s it, no more editing!’ wp-config.php
4. Check if Your Database Server is Down
If everything appears to be in order but WordPress still can’t connect to the database, it’s possible that your database server (MySQL server) is down.
This could occur as a result of high traffic on a server. Basically, the demand on your host server is too much for it to handle (especially when you are on shared hosting).
Make sure to replace the username and password. You can now upload this file to your website and access it via web browser.
