The Cloudera Enterprise Data Hub

As part of the Big Data Platform Distributions week, I will have a closer look at the Cloudera distribution. Cloudera was founded in 2008 by a few people out of the Silicon Valley atmosphere: Christophe Bisciglia (Google) Amr Awadallah (Yahoo) Mike Olson (Oracle) Jeff Hammerbacher (Facebook) Also Doug Cutting, co-creator of Hadoop, joined the company in … Continue reading "The Cloudera Enterprise Data Hub"

KSQL: Streaming SQL for Apache Kafka

KSQL: Streaming SQL for Apache Kafka

Few weeks back, while I was enjoying my holidays in the south of Italy, I started receiving notifications about an imminent announcement by Confluent. Reading the highlights almost (...I said almost) made me willing to go immediately back to work and check all the details about it.
The announcement regarded KSQL: a streaming SQL engine for Apache Kafka!


ODC Appreciation Day: OBIEE’s Time Hierarchies

After last year successful OTN Appreciation Day, it's time again to show our love for a particular feature in any Oracle's tool we use in our work. You may have noted a name change with OTN now becoming ODC: Oracle Developer Community.

What

The feature I want to speak about is OBIEE's Time Hierarchies.
For anybody in the BI business the time dimension(s) are the essence of the intelligence bit: being able to analyze (more...)

Irish people presenting at OOW

Here is a list of presentations at Oracle Open World and JavaOne in 2017, that will be given by people and partners based in Ireland.

(I'll update this list if I find additional presentations)

DayTimePresentationLocation
Sunday13:45-14:30SQL: One Language to Rule All Your Data [OOW SUN1238]

Brendan Tierney, Oralytics

SQL is a very powerful language (more...)

Unify Update – v1.0.1

Unify Update - v1.0.1

Unify Update - v1.0.1

We have updated Unify following feedback from our customers and have released version 1.0.1. The following bugs have been fixed and features added:

  • Change the default port to 3724 as 8080 is the default port of Oracle XE.
  • Allow port configuration in the desktop app.
  • Fixed problem with date filters not working with >, >=, <, <= operators.
  • Fixed some problems using presentation variables used in filters.
  • Made the preview table scale to (more...)

My Oracle Open World 2017 Presentations

Oracle Open World 2017 will be happening very soon (1st-5th October). Still lots to do before I can get on that plane to San Francisco.

This year I'll be giving 2 presentations (see table below). One on the Sunday during the User Groups Sunday sessions. I've been accepted on the EMEA track. I then get a few days off to enjoy and experience OOW until Thursday when I have my second presentation that is part (more...)

Interview at POUG

Game of Thrones S07 Last Episode: The Summary

Game of Thrones S07 Last Episode: The Summary

Watch the Episode First! It's a friendly suggestion...

The final #GoT episode was transmitted last Sunday, now two years waiting for the next season... How can HBO be so cruel??? And how can I find interesting content for my future blog posts???
At least now European football (not soccer) leagues are back, so TV-side I'm covered!


via GIPHY


Going back to serious discussions, Game of Thrones last episode: Yay or Nay? The average sentiment for (more...)

Infosys, NRN Murthy, and Vishal Sikka – No One’s Smelling of Roses


C

orporate sagas seem to come in twos. The mega-fracas that erupted in 2016 between Cyrus Mistry, then Chairman of Tata Sons, and the iconic Ratan Tata, Chairman Emeritus at Tata Sons,  was starting to come to a close by the second half of 2017 (though I fear the last words have yet to be written). Ratan Tata had annointed N Chandrasekaran, CEO of TCS, as thew Chairman of Tata Sons, (more...)

How to speed up your Oracle Data Mining with in-memory and parallel

Have you have found running a workflow in Oracle Data Miner slow or running the scripts in the database slow ?

No. Good, because I haven't found it slow.

But (there is always a but) it really depends on the volume of data your are dealing with. For the vast majority of us who aren't of the size of google, amazon, etc have data volumes that are not that large really and a basic server can (more...)

The Week After: Game of Thrones S07 E06 Tweets and Press Reviews Analysis

The Week After: Game of Thrones S07 E06 Tweets and Press Reviews Analysis

Another week is gone, another "Game of Thrones" episode watched, only one left until the end of the 7th series.
The "incident" in Spain, with the episode released for few hours on Wednesday screwed all my plans to do a time-wise comparison between episodes across several countries.

The Week After: Game of Thrones S07 E06 Tweets and Press Reviews Analysis

I was then forced to think about a new action plan in order avoid disappointing all the fans who enjoyed my previous blog post about the episode 5. (more...)

Scheduling ODMr Workflows in SQL Developer 4.2+

A new feature for Oracle Data Mining (ODM) (part of SQL Developer 4.2) is the ability to schedule an ODM workflow to run a defined time or frequency. This blog post will bring you through the steps need to schedule an ODM workflow using this new feature. The first thing that you need is an ODMr workflow. The following image is a familiar looking one that I typically use to get a very quick (more...)

How was Game Of Thrones S07 E05? Tweet Analysis with Kafka, BigQuery and Tableau

How was Game Of Thrones S07 E05? Tweet Analysis with Kafka, BigQuery and Tableau

I don't trust statistics and personally believe that at least 74% of them are wrong.... but I bet nearly 100% of people with any interest in fantasy (or just any) TV shows are watching the 7th series of Game of Thrones (GoT) by HBO.
If you are one of those, join me in the analysis of the latest tweets regarding the subject. Please be also aware that, if you're not on the latest episode, some (more...)

Auto enabling APPROX_* function in the Oracle Database

With the releases of 12.1 and 12.2 of Oracle Database we have seen some new functions that perform approximate calculations. These include:

  • APPROX_COUNT_DISTINCT
  • APPROX_COUNT_DISTINCT_DETAIL
  • APPROX_COUNT_DISTINCT_AGG
  • APPROX_MEDIAN
  • APPROX_PERCENTILE
  • APPROX_PERCENTILE_DETAIL
  • APPROX_PERCENTILE_AGG

These functions can be used when approximate answers can be used instead of the exact answer. Yes can have many scenarios for these and particularly as we move into the big data world, the ability to process our data quickly is slightly more important (more...)

Six Plus One Types of Interviewers


R
emember Chuck Noland? The character in the movie Castaway, who has to use the blade of an ice-skate to extract his abscessed tooth, without anesthesia? The scene is painful to watch, yet you can't look away.

Interviews have this habit of turning up a Chuck Noland - in the interviewee or the interviewer. You willingly agree to subject yourself to the wanton abuse by random strangers who you may have to end up working (more...)

Part 5 – The right to be forgotten (EU GDPR)s

This is the fifth part of series of blog posts on 'How the EU GDPR will affect the use of Machine Learning'

Article 17 is titled Right of Erasure (right to be forgotten) allows a person to obtain their data and for the data controller to ensure that the personal data is erased without any any delay.

This does not mean that their data can be flagged for non-contact, as I've seen done (more...)

Management Mantra for Startups – Waste Not, Vacate Not

Image credit: pexels.com

Waste Not, Vacate Not.

W
hen Jeff Bezos, founder and CEO of Amazon, started out Amazon, he, along with Shel Kaphan, programmer and a founding employee, used sixty-dollar doors from Home Depot as desks. It was the demand of frugality. More than a decade later, when Amazon was a multi-billion dollar behemoth, conference-room tables were still made of door-desks. It reflected its CEO's adamant belief in "frugality." A (more...)

Part 4b – (Article 22: Profiling) Why me? and how Oracle 12c saves the day

This is the fourth part of series of blog posts on 'How the EU GDPR will affect the use of Machine Learning'

In this blog post (Part4b) I will examine some of the more technical aspects and how the in-database machine learning functions saves the day!

Probably in most cases where machine learning has been used and/or deployed in your company to analyse, profile and predict customers, it is more than likely that (more...)

Part 4a – (Article 22: Profiling) Why me? and how Oracle 12c saves the day

This is the fourth part of series of blog posts on 'How the EU GDPR will affect the use of Machine Learning'

In this blog post (Part4a) I will discuss the specific issues relating to the use of machine learning algorithms and models. In the next blog post (Part 4a) I will examine some of the more technical aspects and how the in-database machine learning functions saves the day!

The EU GDPR has (more...)

Analyzing Wimbledon Twitter Feeds in Real Time with Kafka, Presto and Oracle DVD v3

Analyzing Wimbledon Twitter Feeds in Real Time with Kafka, Presto and Oracle DVD v3

Last week there was Wimbledon, if you are a fan of Federer, Nadal or Djokovic then it was one of the events not to be missed. I deliberately excluded Andy Murray from the list above since he kicked out my favourite player: Dustin Brown.

Analyzing Wimbledon Twitter Feeds in Real Time with Kafka, Presto and Oracle DVD v3

Two weeks ago I was at Kscope17 and one of the common themes, which reflected where the industry is going, was the usage of Kafka as central hub for all data (more...)