Good testers have the wonderful skill of asking “What if I do this”? This thinking is different than “happy path” coding, where we “know” the answer. People with experience in TDD develop this skill as well.
I wanted to get some experience with basic natural language processing, so I decided to analyze the latest 200 tweets of the user, and perform the following analysis, which in turn influences the music that the user gets:
I thought that it would be an interesting exercise to try implementing Binary Tree traversal techniques without recursion. Below is the implementation of Preorder Traversal without recursion. I have used a queue in order to implement the pre-order traversal without recursion. Since it's a pre-order traversal, we need to visit root, then left and then right subtree.
Recently, Hacker News user roryhughes ran a poll asking what database Hacker News readers (or their companies) use. While the sample size may not be the largest, and "Hacker News readers" is probably not a perfect cross-section of the development world, it's an interesting look at what people are actually using.
With our latest release cycle, we faced a problem that impacted extremely load-intensive long running (multi-day) tests. The symptom was a slow but steady increase in Resident Set Size (RSS) that impacted both our Transaction Engines (TEs) and Storage Managers (SMs).
False projects occur when we use the word “project” for work which is not really a project. Some might think I’m playing word games here but I think its important, I think we need to be clear about our terms. Please, hear me out.
A while ago I did some benchmarks on how different versions of PHP perform in comparison to one another. Recently I ran it again for versions PHP 5.3 through PHP 5.6 and I thought I'd share my results:
Last week, my research group discussed Galit Shmueli’s paper “To explain or to predict?” This is a paper everyone doing statistics and econometrics should read as it helps to clarify a distinction that is often blurred.
Make sure you didn't miss anything with this list of the Best of the Week in the SQL Zone. This week's best include the truth behind the "SELECT * is bad" myth, the results of Markus Winand's SQL performance quiz (60% fail, it turns out), Oracle's tricky index system, and more.