Roel Hartman


Roel started a long time ago using Oracle RDBMS 5, Oracle Forms 2.3, RPT/RPF and Oracle*Case 4.5. Since over 10 years he focuses mainly on Oracle Application Express.
Roel has been a speaker on UKOUG, OOW, Collaborate, ODTUG’s Kscope and a number of local Oracle User Groups.
Within ODTUG he acted as the APEX Content Lead for the Kscope14 and KScope15 conferences and currently is a member of the Board of Directors.
He keeps an (APEX-related) blog on http://roelhartman.blogspot.com.
In June 2009 Roel received an Oracle ACE award and in August 2010 he’s appointed as Oracle ACE Director.
Roel is a co-writer of the “Expert Oracle Application Express” and “Oracle Application Express for Mobile Web Applications” books.
Roel is Director at APEX Consulting in The Netherlands.

Roel Hartman will be on ConTech2022 stage with 2 talks: Real life ORDS; REST in pieces and Enemy of the Session State

Real life ORDS; REST in pieces – Abstract:

ORDS plays an important role in the APEX architecture.
Next to the database and the browser it is a key component to run any APEX application.
But on top of “just” running your APEX application, it also opens up the possibilities of using all kind of RESTful services and features to enhance your application with data that comes from or is send to other sources.
This session will cover a number of examples that we created in order to build the application landscape we have today.
Enemy of the Session State – Abstract:

This session will cover mistakes that are easily made – even by experienced developers – regarding the (mis)use of APEX Session State, database session contexts and caching. Hopefully this will prevent you to fall in a similar pitfall and stop you from being an enemy of the session state!