Author: Lucas Jellema
The final result – which is obtained in an incredibly easy manner – is shown in the next figure: The bubble chart shows bubbles per match. The X and …
Oracle Database 7.3 was the first to support inline views – using the select * from (select * from) syntax. Oracle Database 9i added the with clause for subquery …
In a previous article, I have introduced the World Cup Football tag cloud (https://technology.amis.nl/2014/06/22/sql-challenge-dynamically-producing-a-tag-cloud-for-world-cup-football-matches/). I have shown how tags can be associated with football matches, both explicitly and implicitly …
Tag clouds are a special way to present information about a set of records. Tags are descriptive labels that are associated with specific records. A tag cloud visualizes the …
As I recently said in another blog post, the World Cup Football is such a wonderful source of data that begs to be digested using SQL in many different …
There are situations where I have to create an XPath expression that performs something like if-then-else logic (similar to a CASE or DECODE expression in SQL or a ternary …
Few things lend itself so well to SQL explorations as sport related data. The imminent World Cup Football (or Soccer in some deprived parts of the world)2014 in Brazil …
During the OUGF 2014 Harmony Conference in Finland, I attended a seminar by Chris Date on Temporal Data and the Relational Model. He introduced an approach within the relational …
During this week’s OUGF 2014 Harmony conference in Haltia, Finland I presented on Oracle’s premier application development framework: ADF. ADF is the strategic application development framework for Oracle, a …
After a great party with the Oracle house band doing a veritable “The Commitments”-style performance and some excellent food under a largely clear and sunny Finnish Summer sky and …
I am currently attending the OUGF 2014 Harmony Conference in a beautiful setting on a Finnish lakeside. This conference has a great line up in terms of speakers and …
A recent article (http://blog.soasuitehandbook.org/implement-an-asynchronous-web-service-using-jax-ws-in-jdeveloper/) described how to publish an Asynchronous Web Service from Java (using JAX-WS). It also showed how such a Web Service can be tested using SoapUI. …
This article discusses how to implement an asynchronous web service in Java EE. The Java application will expose a one way operation that will process the request and send …
The speed of cars can be detected at large distance and with great accuracy using laser speed guns. How the measured speeds translate into speeding tickets depends on the …
Today, against all priorities, I have resumed an old hobby: the creation of charts with nothing but SQL to work with. Several years back I created pure SQL Hi-Lo …
This article will provide a live account of the three day Enterprise Mobility conference, hosted by AMIS in Nieuwegein, The Netherlands. Oracle ADF Product Managers Frank Nimphius and Chris …
Donderdag 22 mei organiseert AMIS in samenwerking met Oracle het ADF Community event. Voor iedereen die zich in Nederland en omgeving bezig houdt met ADF is dit een prachtige …
Having access to useful data to create demonstrations and sample applications can be quite a challenge. Demonstrating the power of data visualizations (for example with ADF DVT) or the …
On May 21st, 22nd and 23rd – AMIS and Oracle join forces for a three day event around enterprise application development with Oracle Fusion Middleware. The event targets senior …
This is an important moment for Java. The general availability of Java 8 – more specifically of Java 8 SE, Embedded, (and shortly ME as well) and FX (and …
Today – Tuesday March 18th – is a special day at AMIS. Together with the Oracle Applications User Experience Team, we host the UX Expo – a combination of …
Just published from the Oracle Press Room:
The Oracle Technology Network has just published my article on asynchronous interactions used in multi-layered architectures to free up resources and create at least the perception of speedy processing. …
On Friday 7th of March, Bob Rubart interviewed both Jeremy Ashley and Lucas Jellema about trends in User Experience, the consequences of these trends – both in terms of …
I am no Linux wizard by any standard. During the installation of some piece of Oracle software, I ran into a an error, indicating that my /tmp folder had …
In a recent post I have introduced the key concepts in Adaptive Case Management (ACM). In the article you are reading now, I want to show an example of …
My introduction into the world of adaptive case management (ACM) feels like a huge relief. Without having to give up the benefits from structure and organization, ACM allows me …
Oracle wants to lead in User Experience. Plain and simple. To that end, it has established the Applications User Experience team (back in 2007) – a relatively independent team …
In the past few hours, Douwe Pieter van den Bos released the second issue of OTech Magazine to the world. This magazine contains 17 articles from expert authors around …
Tag Clouds are an interesting way to present information. They very quickly convey an impression of the relative sizes of a substantial number of entities and they do so …
Lucas Jellema November 15, 2013 AMIS, APEX, Architecture, Business Process Management (BPM), Cloud, Data Warehousing & BI, Database, DBA Oracle, Development Tools, Java, Oracle, Oracle 12, Oracle Application Development Framework, Oracle WebLogic Server, PL/SQL, SOA, WebCenter Oracle OpenWorld is a monster event – 10Ks of attendees, thousands of sessions and 100Ks of private conversations that all help convey and define the message about Oracle’s strategy …
The accuracy, internal quality, and reliability of data is frequently referred to using the term ‘data integrity’. Without it, data is less valuable or even useless. This session takes …
(this article is a live blog: it is a work in progress – as I am currently reading this book – and this article will be updated in the …
(this article was written as a live blog: it was work in progress for several days- while I was reading this book – this article was updated several times; …
One of my colleagues had an interesting challenge. In an Oracle Database he has a table that contains an XMLType column. The column contains XML documents with people collections. …
Part of the evolution of Java in release 8 consists of Lambda expressions. These ‘functional expressions treated as variables’ introduce a powerful Inversion of Control in Java – allowing …
Java 8 offers wonderful opportunities and new interesting intellectual challenges for Java developers. With this upcoming release, we are once again focused on programming itself – instead of yet …
Lucas Jellema October 2, 2013 APEX, Business Process Management (BPM), Cloud, Data Warehousing & BI, Database, Java, Oracle, Oracle 12, Oracle Application Development Framework, Oracle WebLogic Server, PL/SQL, SOA, WebCenter On Thursday 10th of October, the 12 man strong AMIS delegation at Oracle OpenWorld and JavaOne 2013 will present its findings in a 3 hour session at AMIS HQ …
Last week’s JavaOne conference provided insights in the roadmap for the Java platform as well as in the current state of things in the Java community. The close relationship …
In this article a second brain dump with observations from the Oracle OpenWorld and JavaOne conferences. These are fairly raw notes – primarily for my own consumption. They may …