CREATE OR REPLACE TRIGGER IC_BIUR
BEFORE INSERT OR UPDATE OF LAST_NAME, FIRST_NAME
ON INSURANCE_CONTACTS
FOR EACH ROW
begin
/* for inserting only new values
if inserting then
 insert into audit_table values (:new.col1,...:new.coln);
end if;
/* for delete, only Old values */
if deleting then
 insert into audit_table values
 (:old.col1,..,:old.coln);
end if;
/* for update both old and new values */
if updating then
 insert into audit_table values
  (:old.col1,:new.col1.......);
end if;
end;

if update