Author Archives: George Valentin Voina

Migrate legacy application using Oracle 10g to Oracle 12c

By | March 16, 2019

After upgrading my developement Oracle database to 12c I discovered that an old legacy application still under support was no longer working throwing the following Oracle error: After some digging I found the following reported bug: Bug 14575666 In 12.1, the default value for the SQLNET.ALLOWED_LOGON_VERSION parameter has been updated to 11. This means that… Read More »

Create local users in #Oracle 12c

By | March 16, 2019

One of the most annoying things is when some vendor decides that it is a good idea to change some very basic and long time existing basic behaviour. In the new Oracle 12c you are no longer able to create local users the old way as sys: If you try to execute the above the… Read More »

Some travellers you meet when you #BusinessTravel

By | February 8, 2019

If you travel a lot by plane you stumble on all sort of people in the airports. This is a short list of the types I identified: The lost bunch: People running around like headless chickens, lost in the terminal. They annoy everybody and create a buzz in the terminal. The herd: Compact group of… Read More »

Short thoughts on Code #Refactoring

By | December 15, 2018

You know when your code turns into spaghetti and you start wondering what you were eating or smoking when you wrote that code. Usually nobody is such a bad programmer that writes spaghetti code, spaghetti code is something that builds in time when features are added at big pace or when you implement fixes or… Read More »

My #businesstrip to #Luanda #Angola

By | February 5, 2020

This is another trip done in August 2018. How to get there: Going to Angola is easy, there are a lot of airlines flying there. Obviously, the Portuguese airline has daily fights from Lisbon but you can also take the direct flight from Paris or Brussels.     Luanda is a very strange place in… Read More »

My #businesstrip to #Ulaanbaatar #Mongolia

By | September 27, 2020

Working for a multinational company that implements payment systems across the world has its ups and downs. Traveling to new and strange places which are not usually on ones travel wish list is one of the ups.  This is just my opinion, I know people for which having to travel to strange places is a… Read More »

#Java #Weblogic : The server is in an incompatible state

By | November 19, 2018

WebLogic application server has its share of mind boggling error messages the same as its competition like WebSphere or JBoss. For some weird reason my servers (WebLogic version of a JVM instance) all dies and entered the weird state of “INCOMPATIBLE STATE”. Of course the author of that state label forgot to mention “incompatible with… Read More »

Secure an #nginx or #apache website using #ssllabs.com

By | October 14, 2018

From time to time is good to perform a security audit to your Internet exposed services. Things change fast online so you have to keep up with the security reports to be able to maintain secure services online. My favorite tool for SSL related security audit is the great resource at www.ssllabs.com. The audit performed… Read More »

#Fintech joins the big boys in Singapore

By | September 19, 2018

In a very bold move Fintech firms to get access to Singapore’s real-time payment system. I like how this type of small countries like Estonia and Singapore become test labs for the financial technology. It is easy to do radical new things that use technology and change habits in a very technology oriented location like… Read More »