You might want to check to make sure that there are NOT stats on the sys.uet$ and sys.fet$ tables. These tables should not have stats even in 10g. -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Patty.Charlebois@xxxxxxxxxxxxxx Sent: Monday, June 25, 2007 11:47 AM To: Oracle-L@xxxxxxxxxxxxx Subject: Querying v$ tables very slow after upgrade After upgrading our production database from 9.2.0.7 to 10.2.0.3 yesterday we are having severe performance problems when trying to query any dba_* view or v$* view. I checked and stats were gathered for all SYS tables during the upgrade, the last_analyzed date is the time of the upgrade. Does anyone have any experience with this? Thanks, Patty This e-mail is confidential, intended solely for the use of the recipient(s) to whom it was addressed. If you have received it in error, please do not copy or distribute this e-mail. We ask that you notify us immediately by replying to the sender and then delete this e-mail. E-mail sent or received over the internet may not be secure. You should use caution when sending e-mail messages containing private and confidential information or consider other secure means to send the information. If you have any questions regarding the authenticity or security of the e-mail you have received please do not hesitate to contact us at 1-800-265-5615. Ce message de courriel est confidentiel et s?adresse uniquement à la personne indiquée. Si vous l?avez reçu par erreur, veuillez ne pas copier ni distribuer ce message de courriel. Nous vous demandons de nous aviser immédiatement en répondant à l?expéditeur, puis en supprimant ce message. Les messages envoyés ou reçus par courriel pourraient ne pas être sécurisés. Vous devriez être prudent lorsque vous envoyez des messages de courriel contenant des renseignements confidentiels et privés ou songer à prendre d?autres moyens sécurisés pour envoyer les renseignements. Si vous avez des questions concernant l?authenticité ou la sécurité d?un courriel que vous avez reçu, n?hésitez pas à communiquer avec nous au 1 800 265-5615. -- //www.freelists.org/webpage/oracle-l No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.9.7/868 - Release Date: 6/25/2007 12:20 PM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.9.7/868 - Release Date: 6/25/2007 12:20 PM -- //www.freelists.org/webpage/oracle-l