https://docs.oracle.com/cd/F19136_01/tgdba/tuning-database-buffer-cache.html#GUID-DE6B6C6E-D947-45FF-B189-F0271B86DB10
https://docs.oracle.com/cd/F19136_01/tgdba/tuning-database-buffer-cache.html#GUID-30C8D6DD-C903-4484-B435-D51DF601D8B1
show parameter cache
alter system set DB_RECYCLE_CACHE_SIZE=50M;
alter system set DB_KEEP_CACHE_SIZE=50M;
create table sh.recycle(
col1 number,
col2 date
)
storage( BUFFER_POOL recycle);
create table sh.keep(
col1 number,
col2 date
)
storage( BUFFER_POOL keep);
select table_name,BUFFER_POOL from dba_tables where table_name in ('RECYCLE','KEEP');