Day 3 started out with a 8 AM (!) presentation on Mobile Application Development. Didn't cover any APEX specific details, more about the general things to consider when developing these kinds of apps. Like how to handle multiple platforms, like IOS and Android - and over 10 others. Native apps are preferred above browser apps (and any APEX app will be a browser app). The solution for handling all these different platforms is to use a framework (like jQuery Mobile). For data integration, you should use webservices in order to keep the bandwith usage as small as possible.
The next session had the (lomg) title Enhancing your Data Warehouse Data Completeness using APEX. The presenter showed a (very simple) application to authorize and monitor Excel uploads and changes made to the master data of a data warehouse. Nothing very new...
Then David Peake presented on APEX integrating with E-Business Suite. Since v12, EBS doesn't support mod-plsql extensions anymore. But, luckily, there is a solution for that. You have to run EBS 12.1.3 and an additional patch, but then you're there.Recommended is you should set up a separate webserver and listener for APEX (using Glassfish and APEX Listener), and not use the APPS scheme for the workspace, but create a separate one with access to only the APPS objects needed for the customizations. All the details are in this whitepaper.
Last before lunch, there was a 30 minute session about APEX for DBA's. The message here was to kill all the spreadsheets and bring them over to APEX. Isn't always easy, but still worthwhile. The funny thing is, once the spreadsheet is turned into an Interactive Report, users downloaded that one again...in Excel..sigh.
Then there was a 3 hour break. Meant to spend time in the exhibition hall, but I thought the pool was a better place to be!
After that, I attended the session Developing Multi-client applications with APEX. In the presented solution multiple applications existed that are used by multiple clients - without seeing eachothers data. One master table (with the "client" info) was the parent to all tables - or the grandparent. And add an addtional line to the where clause of all queries. (I would have implemented the "client-id" in all tables to make it easier and use the VPD-properties built into APEX). Some smart customization stuff though: Using replacement strings (like &XYZ.) for customizing Tab labels, URL's and even colors and region widths in the templates!
Last session of today was the APEX Panel. Together with Scott Spendolini and David Peake, we tried to answer the questions from the audience. Good questions came up and we even ran 15 minutes out of time.
After the exhibition hall drinks, I attended the traditional ACE dinner. Good food and pleasant company!