Author: Lucas Jellema
In about a week’s time, I am presenting the Great Oracle SQL Quiz, at Oracle Open World in San Francisco. Thursday morning, 8.30am (it’s session S290735 – Hilton Continental …
Well, at the very least come to my presentation Building Real Oracle Application Development Framework (Oracle ADF) Applications: A Learning Experience at OOW next week: S290737, Thursday 4.00pm (Moscone …
Our end users – inspired by the Interaction Designers – have requested a superduper tooltip for their fields. Not the shy title popup label that browsers show for elements …
Earlier today I wrote about The Great Oracle SQL Quiz session at Oracle Open World. I presented two sample questions – that will not be in the quiz at …
Next week, I am doing two presentations at Oracle Open World, both on Thursday. One is on ADF – more on that later. The other one is The Great …
Most our ADF application is generated. For many reasons, including an easier upgrade to 11g later on. That means a lot of fiddling with custom generator templates – the …
ADF applications are fun to develop. And some challenges make it even more fun. Our challenge is our Interaction Designer who, together with the end user board, comes up …
As I may have mentioned previously on this blog, I am currently involved in a somewhat challenging ADF project. We are using JDeveloper 10.1.3.3 and JHeadstart 10.1.3.2 for the …
There are times when a challenge presents itself. Often for no logical reason and without any direct benefit. Like doing a crosswords. I have this unconscious part of me …
Yesterday was nice. Alex and I had two presentation ‘gigs’, the second of which was in the Amsterdam Arena, the AJAX Amsterdam stadium: It was sold out! Well, our …
Creating ‘download file’ functionality in our ADF Web Applications is pretty easy, especially when using JHeadstart. Using a few declarative settings, we can generate the download capability in no …
We have been playing with Oracle 11g for quite some time now. Walking around in the toy-store if you like. Trying out many new features, trying to push them …
JHeadstart 10.1.3 has great support for Uploading and Downloading files up to and from Web Applications – and indirectly from the database. Compared to prior releases, JHeadstart 10.1.3 has …
We are developing an ADF application for a customer. It is a very large and complex application, offered in a hosted environment to over 110 customers and with more …
One characteristic of professional applications is their manageability. How easy is it for run-time Database and Application Server Administrators to work with the application, especially when there are issues …
One of the new features in the Oracle 11g database is called Oracle Total Recall. This is called marketing! I have read some weblogs where people – mostly DBAs …
For one of my current ADF projects, the customer has asked for a Rich Text Editor – to allow the end user to easily edit Email-messages that are sent …
Row generation is a very useful technique for many (semi-)advanced SQL Queries. We have discussed various methods for row-generation in previous articles on our weblog. Examples are the CUBE …
With the new 11g feature Virtual Columns, we can (almost) declaratively implement dynamic constraints, such as: salaries can not be increased by more than 10% employee records can only …
Oracle 11g introduces Virtual Columns. “What do we need Virtual Columns for, aren’t real ones more useful?” you might wonder. And what are they to begin with? A virtual …
Oracle 9i started introducing Flashback technology into the Oracle RDBMS. Flashback unlocks the UNDO data already available in the Oracle database for read-consistency, for other applications. Using Flashback queries …
Pivoting is all the rage. Turning rows into columns. You can do it in Excel, in all BI/OLAP tools and we could do it in Oracle using clever tricks …
The PIVOT operation is one frequently discussed when talking about more advanced SQL Queries. Pivoting is the process of switching rows and columns, and is for example an advanced …
One of the interesting new pieces of functionality in Oracle 11g is offered by the DBMS_COMPARISON package. This package allows us to compare two tables – or two views …
One of our ADF projects has a customer determined to develop an application with a modern, appealing user interface. To that end, they hired a User Interaction Designer, who …
JDeveloper 11g will gives us wonderful charts. Colorful, powerful, exhilerating etc. But since it is not yet production, I might just write this little story about yet another way …
For one of our other ADF projects, we have an interesting requirement: the user should at all times see a little box with the recent case history, and the …
This article will demonstrate some of the capabilities of the ADF Faces Matrix Component I have been working on for last few weeks. It is a fairly generic component …
In a recent project I was working on JSF page that needed to display the result of a calculation performed on values taken from various bean properties. The beans …
In a recent article – ADF Faces File Uploading – It is really that simple! – I described how to set up file uploading with ADF Faces. Using the …
One particularly type of interaction in web applications is typically a little bit tricky. Requiring additional analysis of the frameworks used. For me personally it was even the way …
An interesting requirement for a freshly started ADF project: a Global Search widget, available on virtually every page, that allows the user to enter a search string and perform …
An interesting article was recently published on The Server Side: It discusses a shootout in Cologne between Java IDEs: Eclipse, NetBeans, IntelliJ and JDeveloper. While the author – …
Today a small matter that took quite a lot of time. In my ADF Faces application, a command button brings up a dialog window (browser pop up window). My …
Tables are probably the most important ADF Faces component to present data to the end user. A table can present a huge amount of data at once, both in …
Some months ago, Oracle announced its plans to donate the high end Object Relational Mapping Framework TopLink to the open source community. To be more specific: under the EclipseLink …
Tables are probably the most important ADF Faces component to present data to the end user. A table can present a huge amount of data at once, both in …
Recently I ran into a requirement on an ADF project to present columns in an ADF Faces table component in a clustered (nested) fashion. Out of 12 columns, one …
Another tale from the ADF (10.1.3.2) project for the Interior Decorator chain of stores. When the sales representative is creating the decoration plan for a home or office building, …
Often there is a need for client side (JavaScript) DOM oriented manipulation in Web Applications. To achieve a higher degree of user interactivity, more productivity or simply a more …
![Hands-on introduction to Oracle 11g at the AMIS KC Server Development event, Donderdag 1 november, 16.30 uur]({"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"http:\/\/seattletimes.nwsource.com\/ABPub\/2012\/08\/02\/2018836700.jpg","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"} "Hands-on introduction to Oracle 11g at the AMIS KC Server Development event, Donderdag 1 november, 16.30 uur")