how to check table been "cache"?

I have table want put on "cache".  I used following way to do:

alter table table1 cache;

select owner, name, type, kept from v$db_object_cache;

OWNER                NAME                                                       
  TYPE            KEP
-------------------- 
------------------------------------------------------------ --------------- ---
USER1               table1                                                NOT 
LOADED      NO


this table in "cache" but not "KEPT".

I used another way to do this:

alter table table1 storage (buffer_pool keep);

select owner, name, type, kept from v$db_object_cache;
no rows selected

Anyone know where is "cache"?

Thanks.




      

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