PGA,SGA and Memory target Estimate.

select sga_size,sga_size_factor,estd_db_time from v$sga_target_advice;


select memory_size,memory_size_factor,estd_db_time from v$memory_target_advice;


select pga_target_for_estimate,pga_target_factor,estd_extra_bytes_rw from v$pga_target_advice;