buffer cache中，各个object对象占用的buffer blocks

COLUMN OBJECT_NAME FORMAT A40
COLUMN NUMBER_OF_BLOCKS FORMAT 999,999,999,999

SELECT o.OBJECT_NAME, COUNT(*) NUMBER_OF_BLOCKS
     FROM DBA_OBJECTS o, V$BH bh
    WHERE o.DATA_OBJECT_ID = bh.OBJD
      AND o.OWNER         != ‘SYS‘
    GROUP BY o.OBJECT_NAME
    ORDER BY COUNT(*);

OBJECT_NAME                              NUMBER_OF_BLOCKS
---------------------------------------- ----------------
OA_PREF_UNIQ_KEY                                        1
SYS_C002651                                             1
..
DS_PERSON                                              78
OM_EXT_HEADER                                         701
OM_SHELL                                            1,765
OM_HEADER                                           5,826
OM_INSTANCE                                        12,644