andrisi wrote:What if I already have MySQL installed? Will XAMPP us it
andrisi wrote:...or will it install another one, or...?
Yes - the lastest version of XAMPP usually includes the latest version of MySQL.
andrisi wrote:What is the "standard procedure" for this case? Thanks.
Don't try and run both instances of MySQL at the same time as this is not possible.
before running the XAMPP instance of MySQL to see if your previous version is occupying port 3306. If it is then the XAMPP instance of MySQL will not start.