Which objects are in buffer cache? How much space is each taking up?

Hi All,
I am on Oracle v 11.2.0.2 (64 bit) RedHat.
I want to find out which objects have presence in buffer cache? and how much space each object is taking up in buffer cache?
I googled around and found few queries based on view x$bh. But when tried to run those on my database, I cannot find x$bh (the user has SELECT_CATALOG_ROLE privilege). Is there any other view holding same information as x$bh?
Thanks in advance.

Be careful, there is quite a bit of misinformation floating about the net about querying v$bh. What exactly do you want to know, that is, what do you want a user to do with the information?
Edit: Oh, you said x... Why the x$bh view does not exist?
Edited by: jgarry on May 16, 2012 2:58 PM

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TimesTen Release 11.2.1.9.6 (64 bit Linux/x86_64)
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>
My Scenario is having a tablespace of 65G but the data is 5G and that is at the end of datafile for that we are not able to resize the datafile our though is to find out what are the objects at that end of datafiles and will either alter move <owner.tablename> move or alter index <owner.index> rebuld online.
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>
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See 'What's at the End of the File?' in this Tom Kyte article from the Sept 2004 Oracle Magazine
http://www.oracle.com/technetwork/issue-archive/o54asktom-086284.html
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If you are being told you cant post a link, or embed a picture (or any other restriction) you just need to post to this thread saying your account has not been validated
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http://social.technet.microsoft.com/Forums/en-US/home?forum=reportabug
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Which objects are in buffer cache? How much space is each taking up?

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