How to freeze field value in mysql db table?

Question

MySQL

Hello.
For example, there is a table "users", in it the field "access". The value in the field is "3", which is updated several times per second by the server. It is necessary to freeze this field with the value "0", so that when creating a new user and updating old ones, it remains with "0".
Triggers are not an option, they load the base, and a delay of even 30ms is unacceptable on this project.
What other options are there?

Answer 1

prevent the user under which the application is running from changing this field. Set another user field to the desired value. Get an error when trying to change a field. If the application spit on an error, then everything will work out. If not, tell the boss / customer that this is not possible and solve the problem humanly

Answer 2

Hardcode in code

Answer 3

Nonsense is some kind of incorrect application architecture on the face and an attempt to make a crutch, in the user registration code, instead of querying the database, do $access = 0; )))