This is a second post, I thought I would have more than 1 answer Hi all, Vacation is over ! We'll have some tables with a PK and between 1 and 3 other fields . Those tables will be insert once and read 2 to 7 times. I'm wandering about the use of IOT and done some tests. When inserting 700 000 rows, the IOT and the standard table with a PK took the same time . When reading by querying on the PK in a loop (looping 700 000 times) I have the same total query time but the IOT is reading 1 300 000 blocks and spending more time in the execute phase than in the fetching phase, the standard table with PK is reading 2 000 000 blocks and spending just a little bit more time in the executing phase than the fetching phase. Those tables may not benefit from a lot of caching since there are in the staging area of a DW system. Any advices or bad experience on IOT (Oracle 816, DW system) ? ===== Stéphane Paquette DBA Oracle, consultant entrepôt de données Oracle DBA, datawarehouse consultant [EMAIL PROTECTED] ___________________________________________________________ Do You Yahoo!? -- Pour faire vos courses sur le Net, Yahoo! Shopping : http://fr.shopping.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?q?paquette=20stephane?= 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).
