jump to navigation

New Round of Let’s Talk Database Events February 12, 2016

Posted by Richard Foote in Oracle Indexes.

I’ll be presenting a new round of “Let’s Talk Database” events around Australia and NZ next month. These are free events but have often “sold out” in the past so booking early is recommended to avoid disappointment.

All events run between 9:00am – 12:30pm and are followed by a networking lunch.

Currently, the confirmed events are:

  • Sydney – Tuesday, 22 March 2016: Let’s Talk Oracle Database: Performance Diagnostics – How To Correctly Use AWR Reports. To register, email: mitch.foster@oracle.com
  • Melbourne – Wednesday, 23 March 2016: Let’s Talk Oracle Database: Oracle 12c Database New Features. To register, email: johanne.sergeant@oracle.com SOLD OUT !!
  • Canberra – Thursday, 31 March 2016: Let’s Talk Database: Intro To CBO Costings, APEX New Features and Software-on-Silicon. To register, email: richard.foote@oracle.com
  • Perth – Thursday, 5 May 2016: Let’s Talk Database: Performance Diagnostics – How To Correctly Use AWR Reports. To register, email: dennis.ward@oracle.com
  • Adelaide – Friday, 6 May 2016: Let’s Talk Database: Intro To CBO Costings, Database Futures. To register, email: brodie.james@oracle.com
  • Wellington Wednesday, 11 May 2016: Let’s Talk Oracle Database: Oracle 12c Database New Features. To register, email: tanya.fea@oracle.com
  • Brisbane: Wednesday, 18 May 2016: Let’s Talk Oracle Database: Performance Diagnostics – How To Correctly Use AWR Reports. To register, email: gordon.laing@oracle.com


More “Let’s Talk Database” events will be added in the coming days.

Details of sessions:

Oracle 12c Database New Features

An in-depth technical look at many of the exciting enhancements and new capabilities introduced in the Oracle 12c Database that help make life easier for the DBA and Oracle Developer. Among a number of topics, we’ll have a look at changes with respect the Cost Based Optimizer, new statistics gathering options, discuss many of the new indexing related capabilities such as Partial Indexes, Advanced Index Compression, Asynchronous Global Index Maintenance, etc. and look at many of those cool little things such as In-Database Archiving, Automatic Data Optimization, Identity Columns, Row-Limiting Clauses, Temporary Undo, Online Move operations, Clustering Attributes, Temporal and Improved Flashback Queries etc. to name but a few that can sometimes make all the difference. Might even squeeze in a bit of Database In-Memory. So plenty to talk about !!!

Performance Diagnostics – How To Correctly Use AWR Reports

I often get called in by customers to determine and address the root cause of database performance issues. Depending on the issue, a request for a simple Automatic Workload Repository (AWR) report is often sufficient to accurately diagnose the root problem(s). However, many DBAs find AWR reports daunting as they contain so much database diagnostic information, they don’t even know where to begin to find the truly useful information.

In this session, I begin by discussing the basic concepts of response times, DB times, the Oracle Wait Interface and how to focus on what is truly important. I then look at how to best read an AWR report to quickly go to the most relevant sections that detail any specific issues. I also discuss a general tuning and diagnostic methodology that ensures one can quickly determine whether an AWR report will indeed be sufficient and how to accurately and consistently use the AWR report to pinpoint and determine root causes for global database performance issues. We’ll go through a number of actual “real-life” examples that highlight various performance issues and how one accurately determines the actual root issues through an appropriate AWR report.

Time permitting, we’ll go through some other useful diagnostic tools such as the AWR Warehouse, Automatic Database Diagnostic Monitor (ADDM), Active Session History (ASH)  and SQL Extended Tracing and scenarios when they can prove to be invaluable in addressing database performance issues.

Intro To CBO Costings, APEX New Features and Software-on-Silicon

A common issue is confusion on why the Oracle Cost Based Optimizer (CBO) has made the decision the use a full table scan or use that index and not the one that appears more appropriate. The costing figures that the CBO derives and displays in execution plans are often viewed as cryptic, which is unfortunate as these costings are key to CBO decisions. Often the attempt to resolve such issues is to set inappropriate database parameters that introduces as many issues as it tries to resolve. This session looks under the covers of the CBO to see how it precisely derives its various costings and hence how to correctly troubleshoot and resolve inefficient queries. Bring a calculator, it might come in handy J

Oracle Application Express (APEX) is a rapid development environment built into the Oracle database. APEX 5 is the latest and largest release of Application Express. This APEX session will include an overview of APEX concentrating on new features, followed by a live demonstration. The session will also look at how easy it is to deploy APEX applications in the cloud.

Oracle’s Software-in-Silicon features extend the concepts of co-engineering hardware and software inherent in engineered systems such as the Exadata. Embedding software which has traditionally sat in the database layer into the hardware layer can yield both performance and security beyond that available of a traditional CPU. This presentation covers how Oracle Database 12c can leverage Software-in-Silicon features, and how third party developers can make use of the new features within their own applications.


Hope to see you at one of these events 🙂