Matthieu de Graaf
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Posts by Matthieu de Graaf
Some time ago, I discussed security in Oracle databases with a customer and explained the role structure in the Oracle database. I explained to him that ultimately it’s the DBA who assigns roles and privileges to the users of an application and it’s the DBA who is the almighty, most powerful user with almost unlimited access to data and abilities to modify a database. With all this security in place, who’s going to prevent to DBA from using his powers in a malevolent way, was my customers question? To be honest, until that moment I’d never given that possibility a thought. I’d always seen DBA’s as hardworking, loyal and honest people who watch over their applications as a mother over her child. But obviously my customer was right about who’s going the check the DBA. This can’t be done be introducing another super-super user, because who’s going to check him? (more…)
From June 17th until June 21st I attended the ODTUG conference in Washington DC. I focused mainly on .Net and Apex. In Holland quite a few customers are moving to a architecture where the front end and middle tier is built in .Net and the database is Oracle with business rules implemented in the Oracle database.
The interest for .Net topics wasnâ€™t overwhelming. Regular Oracle Forms and Oracle designer like to stick to their environments. If they have to switch they turn more or less reluctantly to the J2EE environment promoted by Oracle. However, the people attending the quite a number of presentations on .Net were in general very enthusiastic about .Net. Most of them somehow had to participate in a .Net project and found out they actually liked it.
Personally I think .Net is the choice environment for developing client server applications as long as they only have to run on the windows platform as most C/S applications do. Developing C/S software in Windows Forms is more developer friendly than developing C/S applications in the J2EE environment (ever tried to develop a user interface with the gridbag layout manager?).
I attended a 3 hour meeting of Christian Shay the Oracle More >
Demo application advanced Forms features (ODTUG 2006 version)
Last June, I held a presentation at the ODTUG conference in Washington DC â€œOracle Forms: Productivity with new choicesâ€. During this presentation I showed a demo application, which is an improved version of the one I previously published on this blog
This demo demonstrates the following advanced features of webforms:
- New GUI features
- Sortable blocks
- Outlook tabbed bar
- Tree items
- Webutil examples
- Pluggable Java Components (PJCâ€™s)
- Buttons with a form and an icon
- Buttons with a rounded edge
- Enhanced Java Bean Support
- Integration of JFreeChart Charts with Oracle Forms
- Java importer
- Zipping and unzipping of files
You can download this demo application from the following URL http://technology.amis.nl/wp-content/uploads/images/kcforms.zip
Last Monday we had a KC meeting, where we discussed the latest features of Oracle Forms (OF).
Basically these features break up into two categories:
- Oracle Forms Pl/Sql features
- Oracle Forms Java features
Oracle Forms â€˜Nativeâ€™ PlSql features.
The following Pl/Sql features were discussed
- Sortable blocksWith a simple Pl/Sql library you can make multi-record table-layout blocks sortable.
- Tree-ShuttleWith a simple Pl/Sql library you can make a shuttle component. The 2 sides of the shuttle are trees.
- MS/Outlook Tabbed barWith a set of buttons and some library procedures you can easily make a bar like in MS/Outlook
Oracle Forms Java features
The following OF Java features were discussed:
- Webutil libraryAn out of the box library of Oracle itself for integrating OF applications with the client PC.
- PJCâ€™s- Pluggable Java componentsBy extending the java representations of the OF GUI items new functionality can be added to the standard GUI items. As an example, a PJC for displaying a label and an icon on a button was shown. This PJC is an extension of a PJC developed by Oleg Tishchenko which is an extension of an PJC developed by Duncan Mills which is an More >