Wednesday, 5 October 2011

My Presentation "Getting the Best from the Cost Based Optimizer" at Oracle Open World 2011

Today (Tuesday, October 4th 2011) I had my presentation at OOW 2011 in Hotel InterContinental at 13:15 titled "Getting the Best from the Cost Based Optimizer". The room was already sold out on Thursday and I really expected to have a full room - cca 270 people. The room was too small for all who want attending the presentation. Although there were no seats available quite a lot of them were standing in the back.

This time my presentation was not very technical one (in my eyes). I just wanted to point out problems I see many times in real life when people don't really know about some features or behavior of the CBO. Unfortunately one hour was not enough to explain in details why things are going wrong and also show all relevant details. But as I said, the aim was to point out the problems and also give directions what one has to do to get rid of them and according to the reactions of the audience after the presentation the goal was achieved.

After the presentation I was answering the questions more than half an hour so I almost missed the meeting for the beta program of next release of the database. Because so many were interested to get the presentation slides I have uploaded it to my home web page immediately upon arrival at SFO airport.

Here is the abstract for "Getting the Best from the Cost Based Optimizer":
Oracle Database 11g brings many new enhancements to PL/SQL. These will improve the performance, functionality, and security of your applications and will increase your productivity as a developer. This session will present the Oracle database 11g new PL/SQL language features and enhancements that can be used to improve programming functionality, performance and usability. Participants will learn about new trigger options, PL/SQL function result cache, bulk binding, new security features and more.

The agenda was:
  • Misused Initialization Parameters & System Statistics
  • Extended Statistics
  • Cost of execution of PL/SQL functions
  • Constraints
  • SQL Plan Management
  • SQL Monitoring
  • Automatic Cardinality Feedback Tuning
The presentation is available here for download, but you must be registered.

Sunday, 2 October 2011

Flying over Golden Gate bridge

Saturday was perfect day for activities not related to the Oracle Open World 2011 event. So I decided to do my first flying in USA. The details about this 1h20 long flight are available in my blog about flying.

Flying Over Golden Gate at OOW2011