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Is it a good idea to index datetime field in mysql?
... elimination of rows between conditions: http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html
This makes your datetime column an excellent candidate for an index if you are going to be using it in conditions frequently in queries. If your only condition is BETWEEN NOW() AND DATE_ADD(NOW(), IN...
Rails nested form with has_many :through, how to edit attributes of join model?
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90
Figured out the answer. The trick was:
@topic.linkers.build.build_article
That builds the lin...
Difference between sampling and profiling in jVisualVM
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10
I have found that Sampling is more than accurate enough every time I've used it for pinpointing the bad performing methods. I personally nev...
How to create an instance of anonymous class of abstract class in Kotlin?
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Michael LangMichael Lang
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add a com...
Comparing Timer with DispatcherTimer
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John Cummings
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answered Jul 10 '09 at 20:05
Reed CopseyReed Cop...
Resolving a 'both added' merge conflict in git?
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edited Sep 5 '16 at 10:45
ekuusela
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answered ...
NUnit isn't running Visual Studio 2010 code
I'm trying to load a Visual Studio 2010 beta dll into the NUnit GUI. I get a popup error.
10 Answers
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“new” keyword in Scala
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answered Mar 15 '12 at 20:36
OwenOwen
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What does an Asterisk (*) do in a CSS selector?
...y margin to every element on my entire page you can use:
* {
margin: 10px;
}
You can also use this within sub-selections, for example the following would add a margin to all elements within a paragraph tag:
p * {
margin: 10px;
}
Your example is doing some css trickery to apply consecut...
How can the Euclidean distance be calculated with NumPy?
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answered Sep 9 '09 at 20:12
u0b34a0f6aeu0b34a0f6ae
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