Create a trigger that prevents anychange(insert, update, or delete)to the grade attribute of the takesrelation that would change the total credits of the corresponding student by more than 10 credits. For example, if thecurrent total credits of Sanchez are38, then any change that makes histotal credits greater than 48 or less than 28 would be prevented. b)(10points)Test thetrigger with three distinct events: one insert, one update, and one delete