This guide is for users making changes around a hosting environment where WordPress is installed.

Preamble

• Following a change in your web hosting plan (migration from the old v1 60 Go hosting formula to the current offers), you may need to update the connection between the MySQL/MariaDB database and your WordPress site (to avoid the error "error establishing a database connection" for example) and thus restore the link between WordPress and the MySQL/MariaDB database.

Modify the important elements

Here is the information to update in the wp-config.php file to ensure your WordPress site works (in most cases, a prefix has simply been added to the existing database name and username):

1. the name of the MySQL database (database namebefore, abcd_database name after ex)
2. the MySQL database host server (mysql.domain.xyz before, abcd.myd.infomaniak.com after ex)
3. the username that accesses the MySQL database (userbddbefore, abcd_userbdd after for example)

Modify the WordPress wp-config.php file

To do this:

1. Find and keep your current MySQL information according to the list above.
2. Create an FTP account.
3. Log in via FTP.
4. Edit the wp-config.php file located in the root folder of your WordPress site.
5. Find the relevant paragraph and update the 3 pieces of information (according to the list above).
6. Save the file and that's it, your WordPress will now connect to the correct database!