Checking for the Existence of Multiple Values in SQL

Lukas Eder does a performance test:

But what if you want to check if there are at least 2 (or N) rows? In that case, you cannot use EXISTS, but have to revert to using COUNT(*). However, instead of just counting all matches, why not add a LIMIT clause as well? So, if you want to check if actors called WAHLBERG have played in at least 2 films, instead of this:

Lukas compares performance between two query options in Postgres, Oracle, SQL Server, and MySQL. Because Oracle has weird behavior in the test, Lukas shares a third option that works well for it.