Someone knows how I can make a trigger that at the moment of connecting to the database, check if the user system is connected at that moment. In the affirmative case, an error should be thrown and the user should not be connected.
Someone knows how I can make a trigger that at the moment of connecting to the database, check if the user system is connected at that moment. In the affirmative case, an error should be thrown and the user should not be connected.