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How do MySQL indexes work?

I am really interested in how MySQL indexes work, more specifically, how can they return the data requested without scanning the entire table? ...
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What do single quotes do in C++ when used on multiple characters?

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Heroku NodeJS http to https ssl forced redirect

... 307 (redirect with same method) is probably better than a 400 error. – Beni Cherniavsky-Paskin Aug 19 '15 at 12:21 ...
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Adding information to an exception?

...'t require also changing it in bar(). def foo(): try: raise IOError('Stuff') except: raise def bar(arg1): try: foo() except Exception as e: raise type(e)(e.message + ' happens at %s' % arg1) bar('arg1') Traceback (most recent call last): File ...
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How to install plugin for Eclipse from .zip

...ou see your new views or functionality. Additionally, you can check the "Error Log" view for any problems with your new plugin that eclipse is complaining about. share | improve this answer ...
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Why does ASP.NET webforms need the Runat=“Server” attribute?

...the only option available in my limited knowledge of ASP.NET, and I get an error if I don't use it? 14 Answers ...
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How do I update a Linq to SQL dbml file?

...d tried 1a and 1c without 1b and was getting 'Specified cast is not valid' errors when performing a simple select on a view. Including 1b fixed it for me – tomfumb Nov 29 '11 at 19:40 ...
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What does “#define _GNU_SOURCE” imply?

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How to create a simple proxy in C#?

...ect your Httplistener which is not google.com and will get a cert mismatch error and since your listener won't be using signed cert, will get incorrect cert etc. You can fix it by installing a CA to computer that client will use though. It's a pretty dirty solution. – dr. evil ...
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What are best practices for using SmtpClient, SendAsync and Dispose under .NET 4.0

...a good programming practice should be always considered. Looking from your error I have now got cautions and will rectify my code to include dispose functions to ensure platform reliability. – vibs2006 Jan 8 '17 at 15:57 ...