Success is about Imagination

Tom Kyte, Tim Gorman, Kellyn Pot’Vin, and Ben Prusinski are flying in to the Bay Area to present at NoCOUG Nov 15. I’ll be presenting as...

Oaktable world (aka Oracle Closed World) was an another amazing conference. We are already planning 2013 More videos will be posted as we...

From the article “Facebook shares some secrets on making MySql scale” “800 million users and handling more than 60 million queries per...

The first 3 videos of talks at Oaktable World are up: Connor McDonald 11g RAC upgrade drama http://oaktableworld.com/video-connor-mcdonal...

First 50 attendees each day to Oaktable World will receive a copy of Jonathan Lewis’ latest book “Oracle Core: Essentials for DBAs and...

The secret conference-within-a-conference formerly known as Oracle Closed World which used to be held at the same time as Oracle Open...

A customer called and wanted to know why the development database was so much slower than production when both databases were on the same...

Finally got to take Kevin Closson’s SLOB for spin. (BTW can one test dNFS with Orion at all?) Nice write up on SLOB by Yury Velikanov at...

Been a while since I blogged. There are a lot of things in the works but they involve a fair bit of scripting, thus I’m spending more...

There is more and more happening in the world of visualization and visualizing Oracle performance specifically with...

Database is getting high waits on buffer busy waits. Here is an example period where 5 sessions are completely blocked on buffer busy...

First look at the load on the database (see https://sites.google.com/site/oraclemonitor/dba_hist_active_sess_history...

OK,  so wordpress got hacked. I’ve had problems with this in the past and tried tactical surgery, but this time decided to do a full...

UPDATE: thanks to Alex Gorbachev for pointing out that Oracle has a public yum for OEL which is compatible with REHEL and Oracle has...

Back in http://dboptimizer.com/2010/07/26/oracle-10053-sql-trace-viewer/ I mentioned an Oracle 10053 trace file viewer. Well now there is...

I sometimes forget which versions of ASH have which fields, so here is a bit of a graphic and textual cheat sheet. (see...

Structure of a dtrace script #!/usr/sbin/dtrace -s something_to_trace / filters / { actions } Something_else_to_trace /...

At UKOUG someone asked me if DB Optimizer’s VST diagrams could deal with left deep verses right deep execution plans. What is right deep...

People have been asking me recently, “what is the best enterprise database monitoring software?” Of course for Oracle there is OEM but...

see: http://oracleprof.blogspot.com/2011/11/new-release-of-s-ash-v23.html “New features: – new easier installation process – new...