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Is Continuous Integration compatible with database applications ?

Continuous integration and continuous delivery offers huge efficiency gains for companies  but is continuous integration even possible when the application’s backbone is a massive relational database. How can one spin up database copies for developers, QA, integration testing,  and delivery testing ?  Its not like Chef or Puppet can spin up a 10TB database copy in a few minutes the way one can spin up a Linux VM.

There is a way and that way is called data virtualization which allows one to spin up that 10TB database in minutes as well as branch a copy of that 10TB from Dev to QA, or for that matter branch several copies and all for a very little storage.

AUSOUG conference Perth

The annual two day AUSOUG conference in Perth is well underway, and so far, its been a wonderfully successful event. In particular, we Australians are notorious for not really getting into the networking thing, so conferences often have a lot of ‘awkward silences’ when sessions are not on, and we are meant to be (god forbid) *talking* to each other :-)

But this year has been different. Lots of banter, lots of discussion. Also, the AUSOUG committee got it exactly right this year. The venue is just the right size, the rooms are the right size, the timings of the sessions and transit times were spot on. It is a real credit to them – it shows how much they are listening to the speakers and attendees feedback.

About Oracle’s Code of Ethics, MOS Confidentiality Clause, and Content Stolen from My Website

I strive to keep the number non-technical posts on this blog to the minimum. However, there are days when a non-technical post has to be written. This is one of such days.

Oracle Corporation, concerned about legal and ethical issues, not only provides to its employees a document entitled Code of Ethics and Business Conduct, but also expects that every employee adheres with the standards that the document sets. For the purpose of this post, I would like to quote part of the “Intellectual Property” section:

A simple 12c query with a cool result …

Its not immediately obvious the significance of this query…but trust me…you’ll love it :-)

#CloneAttack online ! (and in person at #ECO14 & #DOAG14)

I’ll be at #ECO14 today in Raleigh,NC. Catch me in person to get a copy of #CloneAttack. I’ll also be at #DOAG14 in Nuremberg Nov 18-20 running an official #CloneAttack along side of #RacAttack and #RepAttack. Will also be at #BGOUG in Sofia Bulgaria Nov 14-16.

For online #CloneAttack info read on:

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We are starting a limited publicly accessible download of a trial version of Delphix and lab.

Jonathan Lewis explains Delphix

OOW 2014 was the best so far for me and a whirl wind.  After not having a presentation accepted since I left Oracle 10 years ago, I got not only a presentation accepted but 3 presentations accepted. Woohoo! Two of my presentations are available on youtube at

On top of that with the awesome support of the Oaktable, Delphix, Pythian and Enkitec , I was able to secure a great venue for the 3rd annual Oaktable World at OOW where we had the leading Oracle performance and internals experts speak for 2 solid days. You can see videos of the Oaktable World presentations at

Mobile Front and Center at Oracle Open World 2014

Wow! Sorry I have not posted anything since Oracle Open World. Lot’s of great new stuff is coming from Oracle that you should look into including some pretty cool stuff for mobile development.

DevOps and Databases?

I’m super looking forward to next weeks DevOps Enterprise Summit in San Francisco. You might ask “Why?!” since I’m a database guy and not a DevOps guy.  I can understand that reaction.

I don’t know about you, but when I hear the term DevOps I have to roll my eyes and think “oh, the latest greatest tech industry buzzword.” So why would I as a DBA care about DevOps? With DevOps, as with most tech industry buzzwords, there is actually a worthy idea at the kernel. The kernel of DevOps has two parts.

Memory

On a client site recently, experimenting with a T5-2 – fortunately a test system – we decided to restart an instance with a larger SGA. It had been 100GB, but with 1TB of memory and 256 threads (2 sockets, 16 cores per socket, 8 threads per core) it seemed reasonable to crank this up to 400GB for the work we wanted to do.

It took about 15 minutes for the instance to start; worse, it took 10 to 15 seconds for a command-line call to SQL*Plus on the server to get a response; worse still, if I ran a simple “ps -ef” to check what processes were running the output started to appear almost instantly but stopped after about 3 lines and hung for about 10 to 15 seconds before continuing. The fact that the first process name to show after the “hang” was one of the Oracle background processes was a bit of hint, though.

Delphix and Oracle 12c partnership

More and more people have been asking me how Delphix compares with Oracle EM 12c Cloud Control with Snap Clone.

Delphix compliments Oracle. Oracle and Delphix are partners.  Delphix is an Oracle Gold ISV partner and we collaborated at Oracle Open World on hosting hands on Delphix labs.