...piece of information, and there can be no duplicate rows. 2NF and 3NF are all about being dependent on the primary key. Recall that a primary key can be made up of multiple columns. As Chris said in his response: The data depends on the key [1NF], the whole key [2NF] and nothing but the key [3NF] ...

Ok, so the last time I wrote C++ for a living, std::auto_ptr was all the std lib had available, and boost::shared_ptr was all the rage. I never really looked into the other smart pointer types boost provided. I understand that C++11 now provides some of the types boost came up with, but not all ...

So I am having trouble working out what, specifically is the difference between these two. 10 Answers ...

... In all grid systems, there are gutters between each column. Bootstrap's system sets a 15px padding on both the left and the right of each column to create this gutter. The issue is that the first column should not have half a g...

... First of all, floating point values are not "random" in their behavior. Exact comparison can and does make sense in plenty of real-world usages. But if you're going to use floating point you need to be aware of how it works. Erring on...

...lignment the view is moved to the top. For horizontal alignment this is usually the left-hand side. (But note, that on devices with right-to-left language setting this is the other way around, i.e. right aligned.) Center: The view is centered. End: Usually the view is bottom or right aligned. (On ri...

... is now considered a blunder. A stack "is-NOT-a" vector; you should not be allowed to insert and remove elements arbitrarily. It should've been composition instead. Unfortunately it's too late to rectify this design mistake, since changing the inheritance hierarchy now would break compatibility wit...

... Because an iterator generally points to a single instance in a collection. Iterable implies that one may obtain an iterator from an object to traverse over its elements - and there's no need to iterate over a single instance, which is what an iterato...

In nodejs, I can do npm install package --save-dev to save the installed package into the package. 8 Answers ...

...r gitattributes now documents another approach for "fixing" or normalizing all the line endings in your project. Here's the gist of it: $ echo "* text=auto" >.gitattributes $ git add --renormalize . $ git status # Show files that will be normalized $ git commit -m "Introduce end-of-line ...