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Roel Hartman
Works at APEX Consulting
Attended Universiteit Twente
Lives in Diepenveen
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Roel Hartman

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Me and the ODTUG Board
This afternoon my Twitter timeline exploded with retweets, likes and congratulations. It all started with this tweet: So it's official now. As Sarah Zumbrum had to step down due to her (dream) move to Oracle, a position on the ODTUG board opened up. And I w...
This afternoon my Twitter timeline exploded with retweets, likes and congratulations. It all started with this tweet: So it's official now. As Sarah Zumbrum had to step down due to her (dream) move to Oracle, a position ...
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Roel Hartman

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Showing a success message after closing a modal dialog
APEX 5 comes with Modal Dialogs out of the box. Very neat. Especially for adding and changing data. And to minimise the number of time a user has to click, it could be useful to add a " Close Dialog " process after the actual data processing. When the data ...
APEX 5 comes with Modal Dialogs out of the box. Very neat. Especially for adding and changing data. And to minimise the number of time a user has to click, it could be useful to add a "Close Dialog" process after the actual d...
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Roel Hartman

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APEX ReadOnly Pages - The easy way
If your Oracle APEX Application requires different types of access - full access or readonly - for different types of users, you can specify a Read Only Condition on Page level (or Region, Item, Button, etc.).  You can set an Authorization Scheme on Applica...
If your Oracle APEX Application requires different types of access - full access or readonly - for different types of users, you can specify a Read Only Condition on Page level (or Region, Item, Button, etc.).  You can set an...
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Roel Hartman

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Riga Dev Day 2015
While waiting at the airport for my plane back to Amsterdam, I have some time to write down my experiences of the last few days in Riga. After arriving in the hotel, I walked to the old part of town and strolled around. The old part looks very medieval (it ...
While waiting at the airport for my plane back to Amsterdam, I have some time to write down my experiences of the last few days in Riga. After arriving in the hotel, I walked to the old part of town and strolled around. The ...
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Roel Hartman

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UKOUG 2014 - A special edition
Although I’ve attended the UKOUG conferences since 2008, this year’s edition was somewhat special to me. Based on the attendee reviews of last year’s UKOUG, I was elected as “ Best Overseas Speaker ”. And for me that’s quite an honour and of course a recogn...
Although I’ve attended the UKOUG conferences since 2008, this year’s edition was somewhat special to me. Based on the attendee reviews of last year’s UKOUG, I was elected as “Best Overseas Speaker”. And for me that’s quite an...
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Roel Hartman

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APEX 5 New Supporting Objects Features
In the current version of APEX the Supporting Objects feature is undervalued. You can create (sort of) self installing applications with it, but it is not widely used. Why? Because people don't realy know the feature or people do and experience lack of func...
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Björn Bröhl's profile photo
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Roel Hartman

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Unexpected behaviour using SSO Authentication for APEX
A customer of mine switched to a Singe Sign On Authentication Scheme for their APEX application - using Oracle Access Manager, but that's irrelevant to this case. In the application there's a function to create an - temporarily - "real" APEX user. That APEX...
A customer of mine switched to a Singe Sign On Authentication Scheme for their APEX application - using Oracle Access Manager, but that's irrelevant to this case. In the application there's a function to create an - temporar...
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Roel Hartman

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APEX 5.0 UI Training - Looking back and towards the future
This week Dimitri Gielis and I ran a training day about all the new APEX 5.0 UI features. We had a full room with 20 enthusiastic attendees from 4 different countries. We covered some general APEX 5 UI features, the Universal Theme, Responsive Grid layouts,...
This week Dimitri Gielis and I ran a training day about all the new APEX 5.0 UI features. We had a full room with 20 enthusiastic attendees from 4 different countries. We covered some general APEX 5 UI features, the Universal...
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Roel Hartman

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Announcement: APEX 5.0 UI Training - May 12th
APEX 5.0 will be released between now and the end of May. People who have already spent some time on the Early Adopter versions know this version is packed with new features aimed to make APEX developers even more productive, like the Page Designer. Another...
APEX 5.0 will be released between now and the end of May. People who have already spent some time on the Early Adopter versions know this version is packed with new features aimed to make APEX developers even more productive,...
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Roel Hartman

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Can you build business critical applications with APEX?
Now and then this question pops up. And today this question was delivered to my mailbox again. A customer is busy starting a project to replace a current Oracle Forms application. So he asked Oracle and one of the Oracle partners: What should we use, APEX o...
Now and then this question pops up. And today this question was delivered to my mailbox again. A customer is busy starting a project to replace a current Oracle Forms application. So he asked Oracle and one of the Oracle part...
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APEX 5 New Password Reset Features
Now and then it happens when we're logging in into our APEX instance: We have to change our password again .... And that means, typing it in an awful number of times: 1. Current Password 2. New Password (and of course preferably the same as the current one ...
Now and then it happens when we're logging in into our APEX instance: We have to change our password again .... And that means, typing it in an awful number of times: 1. Current Password 2. New Password (and of course prefera...
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Roel Hartman

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APEX 5 New Calendar Features
While playing around in the APEX 5 EA2 environment I discovered a few neat little features for Calendar regions. First of all you can export the data of the calendar - only the data that's currently visible - to four types of format. Especially the iCal for...
While playing around in the APEX 5 EA2 environment I discovered a few neat little features for Calendar regions. First of all you can export the data of the calendar - only the data that's currently visible - to four types ...
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People
Have him in circles
350 people
Amanda Walsh's profile photo
Brendan Tierney's profile photo
Björn Bröhl's profile photo
Christian Neumüller's profile photo
Trực Phạm's profile photo
Mia Urman's profile photo
Igshaan L's profile photo
Simon Boorsma's profile photo
Hans Wiggerman's profile photo
Education
  • Universiteit Twente
    Business Informatics, 1983 - 1989
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Gender
Male
Work
Employment
  • APEX Consulting
    Director, 2012 - present
  • LogicaCMG
    Software Architect, 1995 - 2012
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Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Diepenveen
Previously
Den Haag - Deventer - Eindhoven - Nijmegen - Zurich - Hengelo - Zwolle - Kampen
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