how many queries does mysql support simultaneously?
I know that the connection is not the same as simultaneous consultation, and that if there are 3,000 users on a website, it does not even remotely mean that the 3,000 make a query at the same time, but I would like to know how many users can do for example an insert to a table "at the same time", could there be any conflict? If yes, if I have an alternative to this, for example save queries in a queue and execute them one by one.
If this depends on the hardware then if I require at least 15 simultaneous queries, what hardware do I require?
all the above for an online registration for example.
Greetings and thanks.