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Home -> Community -> Usenet -> c.d.o.server -> Re: num of blocks containing table data
A copy of this was sent to jurij.modic_at_mf.sigov.mail.si (Jurij Modic)
(if that email address didn't require changing)
On Wed, 10 Jun 1998 09:34:52 GMT, you wrote:
[snip]
>>I'm pretty sure the only way to get the number of blocks actually containing
>>data is to analyze the table and look at BLOCKS and EMPTY_BLOCKS in the
>>user_tables (or all_tables or dba_tables) views.
>
>Hm, I'm prety sure you are wrong about this one. BLOCKS column in
>USER/ALL/DBA_TABLES contains the information of the maximum number of
>blocks that were *ever* occupied in the particular table, i.e.
>highwatter mark. The same principle applies to the column
>EMPTY_BLOCKS. I checked this with various releases from 7.2.3 to
>7.3.4, I don't know if the situation is changed in release 8.
>
Your right, the EMPTY_BLOCKS is simply the highwater mark. EMPTY_BLOCKS will decrease as the HWM is increased and will only increase when you truncate the table....
[snip]
>
>Regards,
>============================================================
>Jurij Modic Republic of Slovenia
>jurij.modic_at_mf.sigov.mail.si Ministry of Finance
>============================================================
>The above opinions are mine and do not represent any official
>standpoints of my employer
Thomas Kyte
tkyte_at_us.oracle.com
Oracle Government
Herndon VA
http://govt.us.oracle.com/ -- downloadable utilities
Anti-Anti Spam Msg: if you want an answer emailed to you, you have to make it easy to get email to you. Any bounced email will be treated the same way i treat SPAM-- I delete it. Received on Thu Jun 11 1998 - 08:59:17 CDT
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