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What is the difference between varchar and nvarchar?

... supports multibyte characters? If that is the case, is there really any point, other than storage concerns, to using varchars ? ...
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Unit Testing: DateTime.Now

... The best strategy is to wrap the current time in an abstraction and inject that abstraction into the consumer. Alternatively, you can also define a time abstraction as an Ambient Context: public abstract class TimeProvider { private static TimeProvider current = ...
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Printing tuple with string formatting in Python

So, i have this problem. I got tuple (1,2,3) which i should print with string formatting. eg. 14 Answers ...
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When should a class be Comparable and/or Comparator?

...parator vs Comparable Comparable A comparable object is capable of comparing itself with another object. The class itself must implements the java.lang.Comparable interface in order to be able to compare its instances. Comparator A comparator object is capable of comparing two different objects....
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Extension methods must be defined in a non-generic static class

I'm getting the error: 10 Answers 10 ...
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How to represent empty char in Java Character class

I want to represent an empty character in Java as "" in String... 15 Answers 15 ...
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How does one get started with procedural generation?

Procedural generation has been brought into the spotlight recently (by Spore, MMOs, etc), and it seems like an interesting/powerful programming technique. My questions are these: ...
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Formatting floats without trailing zeros

How can I format a float so that it doesn't contain trailing zeros? In other words, I want the resulting string to be as short as possible. ...
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How to model type-safe enum types?

...ike Java has. Given a set of related constants, what would be the best way in Scala to represent those constants? 9 Answers...
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Android Emulator: Installation error: INSTALL_FAILED_VERSION_DOWNGRADE

I am currently trying to compile and test a small Android Application. 15 Answers 15 ...