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Primary key or Unique index?
...so implies NOT NULL, but a unique index can be nullable.
There can be only one primary key, but there can be multiple unique indexes.
If there is no clustered index defined then the primary key will be the clustered index.
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How do you do Impersonation in .NET?
...an often get lengthy though and that is why you see many examples like the one you reference that try to simplify the process.
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How are Python's Built In Dictionaries Implemented?
Does anyone know how the built in dictionary type for python is implemented? My understanding is that it is some sort of hash table, but I haven't been able to find any sort of definitive answer.
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Why does Decimal.Divide(int, int) work, but not (int / int)?
...force non-integer division on int arguments by explicitly casting at least one of the arguments to a floating-point type, e.g.:
int a = 42;
int b = 23;
double result = (double)a / b;
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Kotlin secondary constructor
...supported later).
Most use cases for secondary constructors are solved by one of the techniques below:
Technique 1. (solves your case) Define a factory method next to your class
fun C(s: String) = C(s.length)
class C(a: Int) { ... }
usage:
val c1 = C(1) // constructor
val c2 = C("str") // fact...
What are the differences between Autotools, Cmake and Scons?
...me and are a source for many, many potential breakages of things like mentioned above.
It is pretty much a painful experience to get an Autotools setup to build usable code for a Windows system. (While I've little use for Windows, it is a serious concern if you're developing purportedly cross-platf...
Google Authenticator available as a public service?
...ons support multiple accounts.
The actual process is straightforward. The one time code is, essentially, a pseudo random number generator. A random number generator is a formula that once given a seed, or starting number, continues to create a stream of random numbers. Given a seed, while the numbe...
AngularJS error: 'argument 'FirstCtrl' is not a function, got undefined'
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You have 2 unnamed ng-app directives in your html.
Lose the one in your div.
Update
Let's try a different approach.
Define a module in your js file and assign the ng-appdirective to it. After that, define the controller like an ng component, not as a simple function:
<div ng-...
You have already activated X, but your Gemfile requires Y
...mfile, so you didn't get any warning when simply using rake.
Yehuda Katz (one of the original Bundler developers) explains it all in this blog post.
To avoid typing bundle exec ... all the time, you could set up an alias or function in your shell for commands you commonly use with Bundler. For exa...
EC2 Instance Cloning
Is it possible to clone a EC2 instance data and all?
7 Answers
7
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