Row level triggers fire once for each row affected by the triggering event. For example, if a row level trigger is defined on a table and a user updates 10 rows in that table, the trigger will fire 10 times.

Statement level triggers fire once for each triggering event, regardless of the number of rows affected. For example, if a statement level trigger is defined on a table and a user inserts 10 rows in that table, the trigger will fire only once.