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Populate data table from data reader

I'm doing a basic thing in C# (MS VS2008) and have a question more about proper design than specific code. 5 Answers ...
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Get last element of Stream/List in a one-liner

How can I get the last element of a stream or list in the following code? 6 Answers 6 ...
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Covariance, Invariance and Contravariance explained in plain English?

Today, I read some articles about Covariance, Contravariance (and Invariance) in Java. I read the English and German Wikipedia article, and some other blog posts and articles from IBM. ...
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In SQL Server, when should you use GO and when should you use semi-colon ;?

I’ve always been confused with when I should use the GO keyword after commands and whether a semi-colon is required at the end of commands. What is the differences and why/when I should use them? ...
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“Diff” an image using ImageMagick

How can I get the difference between two images? I have the original image. Someone has written on an exact duplicate of the original image. Now, I need to compare the original to the written on image and extract just the writing in image format. ...
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What does gcc's ffast-math actually do?

I understand gcc's --ffast-math flag can greatly increase speed for float ops, and goes outside of IEEE standards, but I can't seem to find information on what is really happening when it's on. Can anyone please explain some of the details and maybe give a clear example of how something would chan...
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Master-master vs master-slave database architecture?

I've heard about two kind of database architectures. 2 Answers 2 ...
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Why escape_javascript before rendering a partial?

I'm looking at this Railscast episode and wondering why the call to escape_javascript is needed here: 4 Answers ...
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Why use Ruby's attr_accessor, attr_reader and attr_writer?

Ruby has this handy and convenient way to share instance variables by using keys like 5 Answers ...
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What is a handle in C++?

...dle is sort of a pointer, but not, and that it allows you to keep a reference to an object, rather than the object itself. What is a more elaborate explanation? ...