Skip to main content

My Oracle Open World Sessions

I will be presenting three times at Oracle Open World:

Session ID: CON7828
Session Title: The Whys and Wherefores of New Oracle Database 12c PL/SQL Features

Session ID: CON8265
Session Title: PL/SQL: The Scripting Language Liberator

Session ID: CON8450
Session Title: SQL (and PL/SQL) Tuning Experts Panel

Now, sure, that's plenty exciting.

But I have even more exciting news: we will be holding the first ever YesSQL! Celebration of SQL and PL/SQL event at OOW14 on Monday, September 29th, at 6:30 PM. Here's a description:

Co-hosted by Tom Kyte and Steven Feuerstein, YesSQL! is an Oracle Open World event celebrating SQL, PL/SQL, and the people who both make the technology and use it.

At YesSQL!, special guests Andy Mendelsohn, Maria Colgan, Andrew Holdsworth, Graham Wood and others share our stories with you, and invite you to share yours with us, because....

SQL Celebration is an open mic night. Tell us how SQL and PL/SQL - and the Oracle experts who circle the globe sharing their expertise - have affected your life!

And right after YesSQL! everyone is invited to join the big Tech Fest on Howard Street, where we can continue our conversations, and mingle with Java, MySQL and other developers in the vast Oracle ecosystem.

Bottom line: If developing applications against Oracle Database is a big a part of your life, join us for a fun and uplifting evening.

You'll be hearing more about YesSQL! in the coming months, but I thought I'd give you early notice so you can put it on your schedule.

Space is limited at YesSQL!, so be sure to sign up. The session ID is CON9027.

Comments

Post a Comment

Popular posts from this blog

My two favorite APEX 5 features: Regional Display Selector and Cards

We (the over-sized development team for the PL/SQL Challenge - myself and my son, Eli) have been busy creating a new website on top of the PLCH platform (tables and packages): The Oracle Dev Gym! In a few short months (and just a part time involvement by yours truly), we have leveraged Oracle Application Express 5 to create what I think is an elegant, easy-to-use site that our users will absolutely love.  We plan to initially make the Dev Gym available only for current users of PL/SQL Challenge, so we can get feedback from our loyal user base. We will make the necessary adjustments and then offer it for general availability later this year. Anyway, more on that as the date approaches (the date being June 27, the APEX Open Mic Night at Kscope16 , where I will present it to a packed room of APEX experts). What I want to talk about today are two features of APEX that are making me so happy these days: Regional Display Selector and Cards. Regional Display Sel

Get rid of mutating table trigger errors with the compound trigger

When something mutates, it is changing. Something that is changing is hard to analyze and to quantify. A mutating table error (ORA-04091) occurs when a row-level trigger tries to examine or change a table that is already undergoing change (via an INSERT, UPDATE, or DELETE statement). In particular, this error occurs when a row-level trigger attempts to read or write the table from which the trigger was fired. Fortunately, the same restriction does not apply in statement-level triggers. In this post, I demonstrate the kind of scenario that will result in an ORA-04091 errors. I then show the "traditional" solution, using a collection defined in a package. Then I demonstrate how to use the compound trigger, added in Oracle Database 11g Release1,  to solve the problem much more simply. All the code shown in this example may be found in this LiveSQL script . How to Get a Mutating Table Error I need to implement this rule on my employees table: Your new salary cannot be mo

How to Pick the Limit for BULK COLLECT

This question rolled into my In Box today: In the case of using the LIMIT clause of BULK COLLECT, how do we decide what value to use for the limit? First I give the quick answer, then I provide support for that answer Quick Answer Start with 100. That's the default (and only) setting for cursor FOR loop optimizations. It offers a sweet spot of improved performance over row-by-row and not-too-much PGA memory consumption. Test to see if that's fast enough (likely will be for many cases). If not, try higher values until you reach the performance level you need - and you are not consuming too much PGA memory.  Don't hard-code the limit value: make it a parameter to your subprogram or a constant in a package specification. Don't put anything in the collection you don't need. [from Giulio Dottorini] Remember: each session that runs this code will use that amount of memory. Background When you use BULK COLLECT, you retrieve more than row with each fetch,