SQL & PL/SQL

Hello,

I am using the following trigger to update another table. Currently, the trigger fires on a change of the employee_id, but I need the trigger to fire if there is a change in any of the following columns: employee_id, first_name, last_name. Do I need to create a seperate trigger for each column or can this be combined into one?

thanks, sck10

create or replace TRIGGER "TG_EMPLOYEE_GEN"
AFTER INSERT OR DELETE OR UPDATE
OF EMPLOYEE_ID
ON EMPLOYEE

BEGIN
RIGHTS_GEN_UPDATE_PKG.RightsUserMapGenUpdate ('UpdateGen');
END;