How to change MySQL user password in Plesk File Manager?
To change password of MySQL user in Plesk control panel, follow the steps given below.
Step 1: Login to Plesk control panel.
Step 2: Under Databases --> User Management, Click on the required username for which you want to change the password.
Step 3: Provide the new password and retype the same password in the Confirm password field.
User password will get updated as shown in the below image.