Presenting on pragmatic microservices GOTO Night Thursday, May 12, 2016
On Thursday, May 12, 2016 I will be presenting on pragmatic microservices at the GOTO Night organised at bol.com. The presentation will be the support act for Randy Shoup. Check some of his previous presentations on SlideShare.
We have been around in e-commerce for years. However compared to other companies we’re young. Some would say we are in the scale up phase. (more...)
It’s hackathon weekend at Fishbowl Solutions. Fishbowl’s consulting and development teams – the hackers – along with members of the sales and marketing teams join forces to collaborate on and develop new software applications. While the overall goal of the hackathon may be to produce usable software, the event also is a great learning opportunity for participants and results in a lot of fun.
This is Fishbowl’s 4th annual hackathon and previous events have produced (more...)
In my previous posts about JET I used REST to gather data. Now I want to see how JET works with SSE (Server-Sent Events). The idea is that SSE pushes stock data to the JET-page where a chart is shown.
Below you can see a screenshot of the JET-page with a BarChart (you can see a video at the bottom of this post). As you can see I created four groups, representing four tech companies. (more...)
Read this article on my new blog
In this article you will learn how to create a MapR Streams Consumer that saves all the messages into a MapR-DB JSON Table.
Install and Run the sample MapR Streams application
The steps to install and run the applications are the same as the one defined in the following article:
MapR Streams application
Once you have the default producer and
I’m thrilled to be presenting at Collaborate 2016 with my colleague John Sim, on the recently open-sourced Oracle JET! We front-end developers had been seeking a better UI/UX solution from Oracle for quite some time, and they have delivered in a big way.
With my latest customer I was building the same OSB project over and over again with some minor changes. With copy and paste from other project a lot of other namespaces are saved in the xml under the proxy files. The main reason for this OSB proxy is logging and handling the security between the different domains. Because it was the always the same proxy structure and in OSB 11g there is no template available I (more...)
This is part 3 of the ALTER USER RENAME series
Inspired by a Twitter Comment from Franck Pachot
and as I love to test really funny and strange things with Oracle Products.
I was trying to rename the SYS user and the SYSTEM user.
SQL> alter session set "_enable_rename_user"=true;
The Oracle Service Bus has built in features to poll an IMAP of POP3 mail account. There are loads of excellent blog posts that exactly describe how to do it. However, when the mail server happens to be a Microsoft Exchange server, things become shady. Exchange’s IMAP implementation tends to be not really that compatible, and the server log will fill up with stacktraces such as:
javax.mail.MessagingException: Connect failed;
nested exception is:
What are microservices?
Have you heard of Microservices yet? First time I heard the word I had strong associations with a new appliation for bacterial life in food processing. Maybe my background in biochemistry got the better of me.
Actually, the Microservices Architecture (MSA) is a new sprout on the ever-growing tree of Service-Oriented Architecture concepts. The definition sounds vaguely familiar: A particular method of designing (usually complex) enterprise software applications as suites of small, independent (more...)
It seems that my first blog post today "ALTER USER RENAME - A half official option
" got some great attentions :-)
How did I come to the ALTER USER RENAME command? Just a lucky punch due to my customer. My customer were trying to rename an user in an Oracle Database with several objects (tables, view, functions, types and so) by simply updating the sys.user$ table :-)
The result were better than (more...)
Many times DBA's have to rename / copy complete users/schemas from the current name to a new name within one database. Since several years DBA's are asking for a simple method inside Oracle to execute something like "ALTER USER RENAME".
Common approaches to rename users/schemas are:
- IMPDP with REMAP_SCHEMA
- update of sys.user$
For the option "update of sys.user$", which is in my opinion a really bad choice, see Tom Kyte's comment
In my previous post I made a mobile hybrid application with Google Maps integration. You can find it here.
Now let’s go a step further. An insurance company want’s that their customers can submit a damage immediately in case of an accident. A customer can download an app and install it on their device. When the customer is involved in an accident, he or she can open the app, enter some data and take pictures (more...)
The past week my colleague Patrick Sinke and myself attended the Oracle Fusion Middleware Forum 2016 in Valencia, Spain held from March 15th to March 18th. It was a week overloaded with information, networking and deep-dive workshops. We worked hard, learned a lot and had some fun once in a while as well. The event coinciding with the annual Las Fallas festival also helped with that last part
In this blog I would like to (more...)