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What's wrong with foreign keys?

I remember hearing Joel Spolsky mention in podcast 014 that he'd barely ever used a foreign key (if I remember correctly). However, to me they seem pretty vital to avoid duplication and subsequent data integrity problems throughout your database. ...
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Which is preferred: Nullable.HasValue or Nullable != null?

I always used Nullable<>.HasValue because I liked the semantics. However, recently I was working on someone else's existing codebase where they used Nullable<> != null exclusively instead. ...
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Stylecop vs FXcop

Has Stylecop superseded FXcop? Which product should we be using with Visual Studio 2008? 5 Answers ...
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Matplotlib discrete colorbar

I am trying to make a discrete colorbar for a scatterplot in matplotlib 7 Answers 7 ...
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Why would a static nested interface be used in Java?

I have just found a static nested interface in our code-base. 11 Answers 11 ...
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What is the purpose of “return await” in C#?

... sneaky case when return in normal method and return await in async method behave differently: when combined with using (or, more generally, any return await in a try block). Consider these two versions of a method: Task<SomeResult> DoSomethingAsync() { using (var foo = new Foo()) { ...
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What really is a deque in STL?

...ure used), and the deque stopped me: I thought at first that it was a double linked list, which would allow insertion and deletion from both ends in constant time, but I am troubled by the promise made by the operator [] to be done in constant time. In a linked list, arbitrary access should be O...
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How can I add a third button to an Android Alert Dialog?

The API says that the Alert Dialog can have one, two or three buttons, but the SDK only allows for a positive and negative button. How then can I add a third button? ...
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Mercurial: Can I rename a branch?

We now have a "stiging" branch, where "staging" seems to be a far better semantic fit. What's a good strategy for handling this? ...
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Why are primes important in cryptography?

... strikes me as a non-cryptographer: Why is it so important to use Prime numbers? What makes them so special in cryptography? ...