This depends on the methods you are using to load the data. It does seem excessive even for a simple row at a time loop - which probably shouldn't use more that about 100MB according to the volumes and indexes you've quoted. But it could be the result of a direct path load that rebuilds indexes, or a clunky generated routine that does one insert and multiple updates to populate a row.
Would you care to explain how the data gets into the table, and what proportion of the new rows are likely to have non-null values that would affect the indexes. Regards Jonathan Lewis http://www.jlcomp.demon.co.uk Coming soon a new one-day tutorial: Cost Based Optimisation (see http://www.jlcomp.demon.co.uk/tutorial.html ) ____UK_______March 19th ____USA_(FL)_May 2nd Next Seminar dates: (see http://www.jlcomp.demon.co.uk/seminar.html ) ____USA_(CA, TX)_August The Co-operative Oracle Users' FAQ http://www.jlcomp.demon.co.uk/faq/ind_faq.html -----Original Message----- To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> Date: 30 January 2003 20:34 >I have a table with 40 million rows. Daily I load about 70,000 records into >it. Each record is 128 characters wide. The flat file the data comes in is >9 megs. My redo logs are 20 megs each and I have 3 groups of them. > >When I load the data, the alert log shows 29 log switches which generates a >lot of archives logs. Why am I getting so many log switches? I would think >that if the OS file is 9 megs and the redo logs are 20, I would at most get >1 log switch. > >Thanks, >Randy >-- -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Jonathan Lewis INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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).
