This buffers are changed by Oracle in memory only (in cache), so they are different from the blocks on disk Therefore, they must be written to disk, after which they are not dirty any more. That's how oracle makes changes to speed up the process - everything is done in memory first, then written to disk.
Alexandre ----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Monday, May 13, 2002 1:43 PM > 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 > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Abdul Aleem > INET: [EMAIL PROTECTED] > > 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: [EMAIL PROTECTED] (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). > -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Alexandre Gorbatchev INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).
