Change UUIDs in VirtualBox
If you are anything like me you will have multiple virtualboxes running on your system. Sometimes you might want to run a copy of a virtualbox for different purposes. …
Author: Patrick Barel
Virtual columns
Maarten wrote a post on Virtual Columns in the oracle database. I read a blogpost on preventing people issuing SELECT * on a table. This was done in a …
Virtual Private Database…
Some time ago I was asked to assist in fixing or at least finding the cause of a performance problem. The application ran fine until the Virtual Private Database …
PL/SQL vs SQL
There is a ‘rule’, I think it was created by Tom Kyte, stating: If you can do it in SQL, do it in SQL. I came across some code …
Using Table Functions
Overview of table functions Table functions are functions that produce a collection or rows (either a nested table or a varray) that can be queried like a physical database …
Typical
After a presentation by Lucas Jellema I decided to try something with types in Oracle. One of the issues posed in this presentation was that the type cannot self-reference. …
APEX 5.0 Early Adopter
The long awaited Early Adopter installation is finally available at http://apexea.oracle.com. You can request a workspace here to play around with the new version. I have just been playing …
Webinar on Edition Based Redefinition
On February 13th I will be giving a webinar on Edition Based Redefinition hosted by Red Gate Software.I will be talking about how EBR can be used. It will …
AMIS proud sponsor of the SQL Challenge
SQL today is the foundation for any successful application. Whether it is a SOA implementation, an ADF or APEX application, a Forms application or any other usage of the …
OGh bijeenkomst 4 oktober
![OGh bijeenkomst 4 oktober]({"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"} "OGh bijeenkomst 4 oktober")
Afgelopen dinsdag 4 oktober waren Andre van Winssen en ik de aangewezen personen om een presentatie bij de OGh te verzorgen. Andre vertelde in ongeveer een uur het een …
Oracle Scheduler, the things you ought to know
At the KScope conference in Long Beach, CA one of the most interesting sessions I attended was a session called: Five Features You Ought to Know About the Oracle …
ODTUG KScope 2011
Last week I attended my very first ODTUG KScope conference in Long Beach, California. I have attended conferences by ODTUG before, but they were never this broad. Sunday On …
Replace by position
Have you ever wanted to replace a character in a string just by position? I needed this the other day and IMHO there is no way in Oracle PL/SQL …
Pipelined Table Functions
I have had trouble with a certain view I have to create at the customer site I am currently working at. The view involves 3 SQL queries combined by …
Dynamic Actions in APEX
After visiting the OPP/APEXPosed conference in Brussels I decided to write a post on how to create a relatively simple dynamic action in APEX. When you are working with …
OPP is coming to Atlanta
I have been invited to deliver two talks on performance at the OPP conference, November 10th and 11th in Atlanta. The topics I will address are Pipelined Table Functions …
Quest Software: Toad and Oracle Performance Seminar
Last Wednesday Quest organized a seminar in Amsterdam on the performance of the Oracle database and the programs you write for it. There were three presentations. Development Application Testing …
Code refactoring…
Steven Feuerstein wrote an entry on his Toadworld blog where he checks the refactoring capabilities of SQL-Developer. I am trying the same things in PL/SQL Developer to see if …
Bulk Operations in PL/SQL
When I was in Chicago for the OPP2008 and APEXposed event I talked to someone who seems to have trouble understanding bulk operations in PL/SQL. I helped him out …
(Dutch) 7Up cursus.
Op 3,4,10 en 11 december organiseert AMIS weer de 7Up training. In vier dagen worden de deelnemers wegwijs gemaakt in de nieuwe mogelijkheden die Oracle biedt. Veel mensen zijn …
KC: PL/SQL Developer
Yesterday evening we had a nice, interactive, session about PL/SQL Developer. Theo Tol (BI4U) came by to tell us more about the tool and how it can be used. …
(Dutch) Woensdag 8 oktober: KC PL/SQL Developer onder de loep (met spreker Theo Tol)
In het midden van de 90-er jaren waren er heel weinig en vrij beperkte ontwikkeltools beschikbaar voor het ontwikkelen van PL/SQL. Tegenwoordig is dat heel anders en zijn er …
Testing Rulegen using Codetester
When I was presented with the possibilities of Rulegen it made me wonder: How can these rules be tested. Rulegen is a tool to create rules in the database …
Triggers…
I ran into an issue at a customer site where certain triggers were disabled in the database where they should be enabled. It appeared that an update script, that …
My SOA architecture and webservices mindset…
At AMIS they are working on teaching a lot of us about the fundamentals of SOA. We just had the first couple of events in which Lucas and Peter …
KC presentation on CodeGen…
On February 21st I did a presentation on CodeGen at AMIS. Just a short presentation on what is possible using this great tool. I have created a couple of …