RE: what is meant by dirty buffers

From: SADASIVA,SHRAVAN (HP-India,ex3) <shravan.sadasiva_at_hp.com>
Date: Mon, 13 May 2002 04:13:23 -0800
Message-ID: <F001.0045F324.20020513041323@fatcity.com>

i am not too sure but i think dirty means that the data that is written to the data files mite also be obsolete. This means that the data has already been deleted from the database yet it is written into the file. This is similar to what people call a dirty read in informix cursors where the data displayed through a cursor does not synchronize with the values in the database instead it loads from the memory.

Hope this helps.

Regards
Shravan Sadasivan.

-----Original Message-----
Sent: Monday, May 13, 2002 5:13 PM
To: Multiple recipients of list ORACLE-L

Hi,

In a book I read that DBWO writes dirty data buffers from data buffer cache to the data files. I would appreciate if someone could kindly clear my confusion.

What is meant by dirty data buffers? If these are dirty (not good/healthy) why to write to these to data files?

TIA! Aleem

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Author: Abdul Aleem
  INET: dmit_at_beaconhouse.edu.pk

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Author: SADASIVA,SHRAVAN (HP-India,ex3)
  INET: shravan.sadasiva_at_hp.com

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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 Mon May 13 2002 - 07:13:23 CDT