1. Applications Database Optimization Panel Wolfgang Breitling, Mike Brown, Cary Millsap, Sandra Vucinic, and Mark W. Farnham (moderator)

2. Wolfgang Breitling Independent consultant since 1996 specializing in Oracle and Peoplesoft setup, administration, and performance tuning Mathematics major from University of Stuttgart 25+ years in database management DL/1, IMS, ADABAS, SQL/DS, DB2, Oracle OCP certified DBA - 7, 8, 8i, 9i Oracle since 1993 (7.0.12), Member of the Oaktable Network breitliw@centrexcc.com Centrex Consulting Corp.

3. Wolfgang Breitling breitliw@centrexcc.com Centrex Consulting Corp. www.centrexcc.com

4. Michael Brown, Colibri Limited Working with Oracle Database since 1994 (7.0.13) Working with EBS since 1997 (10.7 SC) On the board of the Database SIG since 2001 DBSIG Chairman 2002-2006 mbrown@colibrilimited.com

5. Cary Millsap / Hotsos Enterprises, Ltd. Hotsos 1999–present Co-founder, instructor, writer, developer, consultant Author Optimizing Oracle Performance with Jeff Holt Oracle Magazine “Author of the Year 2004” Co-author Oracle Insights: Tales of the Oak Table Oracle Corporation 1989–1999 VP System Performance Group Global Service Line leader Consultant at over 100 sites OFA inventor

6. Cary Millsap / Hotsos Enterprises, Ltd. Fill in the book signing schedule when we know it.

7. Sandra Vucinic Over 12 years of experience with Oracle database, applications, development and administration tools Project roles: Architect, Oracle Apps DBA, Project Lead Director, OAUG Database SIG Board Director, OAUG SysAdmin SIG and Committee Chair, Oracle Tools and Utilities Director, OAUG Middleware SIG Board Director, SROAUG Board Presented at OAUG, NCOAUG, CSOAUG, SROAUG, Apps World and Open World conferences (40+ sessions) Founded VLAD Group, Inc. in March, 2001

8. Mark W. Farnham DaTaSyS, circa 1977 Oracle RDBMS circa 1985, V4?, SQL/DS EBS MPL 3.2, Oracle V5.x, January 1989 EBS 4.0.4, Oracle V6.0.x, July 4, 1989 Co-founding director of OAUG, May 1990 President OAUG 1992-1994 Member, Oracle VLDB and MOSES Co-inventor, US patent number 6,035,306 www.rsiz.com

9. Format: Questions and Tips We’ll start with a tip from Wolfgang After that either you ask questions or I put the panel on the spot

10. Gathering Object Statistics – 9i +  Determine which Tables need new Statistics Simplest is to use some “ staleness ” criteria  gather_table_stats, estimate% dependent on table size (can be as low as 0.01) method_opt ‘ for all columns size 1 ’  no histograms on everything cascade false  unless estimate%=100  if num_rows=0 delete the statistics  else gather index stats on the table ’ s indexes with est%=100 and set optimizer_dynamic_sampling=2  Gather histograms on special columns with est%=100  Other special cases