V$bh and flush cache

Question

I issued alter system to flush cache (shared_pool, buffer_cache)
after the command I ran a query against v$bg and those objects are still there .....
should't the just "vanished" from the view after I flush the cache ?
thanks
S.

Answer 1

Hello Sahar,
SQL> select * from v$bh where file# = 83 and block# = 169444;
     FILE#     BLOCK#     CLASS# STATUS         XNC FORCED_READS FORCED_WRITES LOCK_ELEMENT_ADD LOCK_ELEMENT_NAME LOCK_ELEMENT_CLASS D T P S D N       OBJD        TS#
        83     169444         78 xcur             0            0             0 00                                                    N N N N N N 4294967295          7
SQL> alter system flush buffer_cache;
System altered.
SQL> select * from v$bh where file# = 83 and block# = 169444;
     FILE#     BLOCK#     CLASS# STATUS         XNC FORCED_READS FORCED_WRITES LOCK_ELEMENT_ADD LOCK_ELEMENT_NAME LOCK_ELEMENT_CLASS D T P S D N       OBJD        TS#
        83     169444         78 free             0            0             0 00                                                    N N N N N N 4294967295          7Take a look at the STATUS - my database version 10.2.0.2
Regards
Stefan