Exactly. I can not remember all of the isolation levels for each type of database engine but I know what can go wrong and that my application has to be somewhat

Exactly. I can not remember all of the isolation levels for each type of database engine but I know what can go wrong and that my application has to be somewhat aware of them. I have to research each particular engines' isolation level against my application requirements every time. Yet, I manage to forget the behavior of the common ones readily despite having studied them in-depth numerous times.