column component format a25
select component, current_size/1024/1024 currentmb, min_size/1024/1024 minmb, max_size/1024/1024 maxmb, user_specified_size/1024/1024 userspecmb,
     oper_count, last_oper_type, last_oper_time from v$memory_dynamic_components
/
