create or replace trigger ranju after update or delete on banking for each row
 Declare
 a banking.clientno%type;
 b banking.amount%type;
 begin
 a:=:old.clientno;
 b:=:old.amount;
 if updating then
 insert into upd values(a,b,sysdate);
 else
 insert into del values(a,b,sysdate);
 end if;
 end;
/