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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Autoextend - how many times has a datafile extended
No. There isn't (although it would be nice if there was). Oracle only tracks the original and current sizes. The only record of any resizing would be in the alert log if you issued an explicit alter database datafile ... resize command.
Jon Walthour
-----Original Message-----
[mailto:Bruce.Reardon_at_comalco.riotinto.com.au]
Sent: Sunday, September 30, 2001 8:55 PM
To: Multiple recipients of list ORACLE-L
Is it possible to determine how many times a file has extended?
I know that v$datafile.CREATE_BYTES will show what size the file was initially created at. And dba_data_files.INCREMENT_BY shows how much each datafile is currently set to extend by (number of database blocks).
But, given that we can manually resize a file and that we can alter the value of next for a datafile, does Oracle store how many times each file has extended?
Why is this of interest - this number can be related to / help explain the degree of OS fragmentation for the datafile.
Thanks,
Bruce Reardon
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Reardon, Bruce (CALBBAY)
INET: Bruce.Reardon_at_comalco.riotinto.com.au
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Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists --------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Sun Sep 30 2001 - 20:39:32 CDT
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