--:new 新记录,
--:old 老记录
create or replace trigger tr_tab_user_timestamp before insert or update on tab_user for each row declare begin :new.time_stamp:=sysdate; end;
--:new 新记录,
--:old 老记录
create or replace trigger tr_tab_user_timestamp before insert or update on tab_user for each row declare begin :new.time_stamp:=sysdate; end;