Create a Couchbase cluster in less than a minute with Ansible

TL;DR: Look at the Couchbase Ansible Playbook on my Github. Introduction   When I was looking for a more effective way to create my cluster I asked some sysadmins which tools I should use to do it. The answer I got during OSDC was not Puppet, nor Chef, but was Ansible. (more...)

ADF Mobile : Oracle eCourse available

Today Oracle published the first in a series of online eLearning training materials. The ADF Academy presents free and online : Developing Applications with ADF Mobile. The main goal is to deliver technical training material to everybody that needs it. You get an online training, where you can view audio (more...)

Not Wanted: Product Comparison

A specialist is someone who knows a lot about a topic. He specializes and specializes and knows ever more about an ever smaller knowledge area. And in the end, he knows everything about nothing.

I’ve just submitted my abstracts for the UKOUG Technology Conference in December, and I was forced (more...)

ipython-sql bind variables

Thanks to Mike Wilson, ipython-sql now supports bind variables!

In [12]: name = 'Countess'

In [13]: %sql select description from character where charname = :name
Out[13]: [(u'mother to Bertram',)]

White Paper on Custom PDF Reports in APEX

As I’ve previously blogged about and outlined in my video tutorials, it (more...)

Oracle Forms in the Cloud – the next big thing?

The whole world speaks about working in the cloud. Why not Oracle Forms?

Why not...


Because: Oracle did it already...

Grant points to this webcast with the words: "Oracle Forms remains a key technology..."

Have fun listening to Michael and Roger

Patching an Exadata Compute Node

An Oracle Exadata Full Rack consists of 8 DB compute nodes. Oracle has shifted the strategy to patching the exadata in onwards to using Yum as the method of patching. the Quarterly Full Stack  does not include the DB Compute nodes patches anymore. So that (more...)

User Attention Deficit Disorder

The American Psychiatric Association has just released the fifth edition of “Diagnostic and Statistical Manual of Mental Disorders”, known as DSM-5. Currently, 20 percent of American boys aged 14-17 are diagnosed with Attention-Deficit/Hyperactivity Disorder (ADHD), and with the new guidelines, that number is set to increase.

Maybe that’s why your (more...)

Top 5 Oracle Books on Amazon

For your edification and enjoyment, below are the current top 5 most popular Oracle DBA titles on

1. OCA/OCP Oracle Database 11g All-in-One Exam Guide with CD-ROM by John Watson.

2. Oracle PL/SQL Programming by Steven Feuerstein

3.  Oracle SQL Tuning with Oracle SQLTXPLAIN by Stelios (more...)

The Adventures of the Trickster developer – Aliases

The Trickster is a mythological being who enjoys potentially dangerous counter-intuitive behaviour. You'll often find him deep within the source code of large systems.

The Alias Trap

Generally an alias in a query is there to make it easier to understand, either for the developer or the database. However (more...)

Oracle Database Statistics Gathering

What do you know about Oracle Database statistics gathering? What would you like to know? There is a section in the Database Performance Tuning Guide, but how many people take the time to read it? And, once you know what the various procedures are and what they do, how do (more...)

Path To Understand Oracle Fusion Application

Path To Fusion

Review of Learning IPython for Interactive Computing and Data Visualization

valuable but traditional

May 25, 2013 by Catherine Devlinphoto of 'Learning IPython for Interactive Computing and Data Visualization' 4 stars (of 5)

Packt Publishing recently asked if I could review their new title, Learning IPython for Interactive Computing and Data Visualization. (I got the e-book free for doing the review, (more...)

New blog with general Oracle database posts.

Started Oracle database tidbits blog here.

PDF Reports with APEX at NYOUG

The New York Oracle User Group Summer Meeting takes place on June (more...)

Speaking at E4 2013! … and some Exadata Patents good stuff

I’ll be co-speaking with Tyler Muth at E4  and we will be talking about Performance Visualization… some of you may already know that I’m really a big fan of Tableau and just to give you an example on what the tool can do I’ve consolidated all the different viz that (more...)

Ad-hock diagnostic tools for JVM

There are bunch of graphical tools helping you to look inside of running JVM (VisualVm and JConsole are extremely helpful). Unfortunately, some times (almost always in my case), you may find yourself in SSH console on headless server side by side with your JVM (more...)

DOAG 2013 Development in Bonn am 19. Juni

Am 19.Juni 2013 findet die nächste DOAG Development Konferenz in Bonn statt, diesmal mit dem Thema:

„Agile and Beyond – Projektmanagement in der Oracle-Softwareentwicklung“

Das Motto der zweiten Auflage der Community Konferenz steht fest: Die effektive Durchführung von Softwareprojekten steht thematisch im Zentrum der Konferenz für Entwickler, Softwarearchitekten und (more...)

portmap: unrecognized service on RHEL6

Original Post can be viewed at portmap: unrecognized service on RHEL6

Quick note for people using NFS for shared storage on RAC database. Till RHEL5 we had to ensure nfs,nfslock and portmap service has to be running. These services are required otherwise you will get following errors while mounting database


How to locate all interactive reports in my application?

Today my client decided to remove the email functionality from all interactive reports in their APEX application.

I could step through all the pages of my application and check whether there are any interactive reports used. This very manual approach can take some time and I can make mistakes by (more...)