Don’t ask what you can do for documentation – ask what documentation can do for you! (a top down perspective on documentation)

Lucas Jellema

How much documentation is enough documentation? What are the requirements in the definition of done regarding documentation? Cannot simply all code be self-documenting? These are common questions in DevOps, Scrum and other type of software development teams. Typically bottom up discussions among software developers at the time of developing the […]

ETL using Oracle DBMS_HS_PASSTHROUGH and SQL Server

Harry Dragstra

While I prefer a “loosely coupled architecture” for replication between Oracle and SQL Server, sometimes a direct (database) link cannot be avoided. By using DBMS_HS_PASSTHROUGH for data extraction the 2 other ETL processes (transformation and load) can be configured and administered with more flexibility, providing an almost acceptable level of […]

R: Utilizing multiple CPUs

Maarten Smeets

R is a great piece of software to perform statistical analyses. Computing power can however be a limitation. R by default uses only a single CPU. In almost every machine, multiple CPUs are present, so why not utilize them? In this blog post I’ll give a minimal example and some […]

Change UUIDs in VirtualBox

Patrick Barel

If you are anything like me you will have multiple virtualboxes running on your system. Sometimes you might want to run a copy of a virtualbox for different purposes. Like running an Oracle 11 Devdays instance as test environment but also running the same vbox for customer testing. If you […]

Programmatically extract key and value from Windows registry using simple Dos command line statement

Lucas Jellema

The Windows Registry can be inspected from a Dos (Command Prompt) command. The key and data element I was looking for is: Key Name: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\chrome.exe Data Name: Path The OS command we can use to extract the value of this entry: REG QUERY “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\chrome.exe” /S /v Path The […]