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How do MySQL indexes work?

...gh the pages one by one (in a database, this is "poor selectivity"). For a 10-page book, it makes no sense to make an index, as you may end up with a 10-page book prefixed by a 5-page index, which is just silly - just scan the 10 pages and be done with it. The index also needs to be useful - there's...
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Changing website favicon dynamically

...k relation! – Mathias Bynens Jun 7 '10 at 12:45 8 You could just as easily look for an existing f...
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How to hide a in a menu with CSS?

... answered Feb 10 '12 at 21:14 Ryan PRyan P 13.8k2525 silver badges4747 bronze badges ...
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grep a file, but show several surrounding lines?

... 610 -A and -B will work, as will -C n (for n lines of context), or just -n (for n lines of context....
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Random date in C#

...| edited Jan 13 '16 at 23:10 Jeremy Thompson 49.5k1919 gold badges141141 silver badges245245 bronze badges ...
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Node.js: printing to console without a trailing newline?

... 1090 You can use process.stdout.write(): process.stdout.write("hello: "); See the docs for deta...
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How best to include other scripts?

... answered Oct 10 '08 at 17:17 Chris BoranChris Boran 4,41522 gold badges2222 silver badges2424 bronze badges ...
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“Go To Definition” in Visual Studio only brings up the Metadata

...formation anywhere on the web I would tell you. I am running VS 2008 9.0.21022.8 RTM, but I'll be damned if I can find anywhere if that corresponds to VS 2008 SP1 or original – pfunk May 11 '09 at 16:46 ...
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How can I convert String to Int?

... 1072 Try this: int x = Int32.Parse(TextBoxD1.Text); or better yet: int x = 0; Int32.TryParse(...
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Unresolved Import Issues with PyDev and Eclipse

...problem that's just becoming exceedingly annoying. I am using Ubuntu Linux 10.04. 11 Answers ...