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Proper usage of Java -D command-line parameters
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Is it a good idea to index datetime field in mysql?
...ies. If your only condition is BETWEEN NOW() AND DATE_ADD(NOW(), INTERVAL 30 DAY) and you have no other index in the condition, MySQL will have to do a full table scan on every query. I'm not sure how many rows are generated in 30 days, but as long as it's less than about 1/3 of the total rows it ...
How to Sort Multi-dimensional Array by Value?
...er'] - $b['order'];
}
usort($myArray, 'sortByOrder');
Starting in PHP 5.3, you can use an anonymous function:
usort($myArray, function($a, $b) {
return $a['order'] - $b['order'];
});
And finally with PHP 7 you can use the spaceship operator:
usort($myArray, function($a, $b) {
return $...
Does const mean thread-safe in C++11?
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132
I hear that const means thread-safe in C++11. Is that true?
It is somewhat true...
This is wh...
Why is “Set as Startup” option stored in the suo file and not the sln file?
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136
Frequently, you'll have a project which is very likely to be most people's desired startup project for debugging (eg. website), and you don...
Proper Linq where clauses
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answered Jun 15 '11 at 15:13
Bala RBala R
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What is the most efficient way to store tags in a database?
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edited Sep 3 at 22:17
Community♦
111 silver badge
answered Dec 2 '08 at 15:05
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How to download/checkout a project from Google Code in Windows?
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213
If you don't want to install anything but do want to download an SVN or GIT repository, then you...
How to output messages to the Eclipse console when developing for Android
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153
Rather than trying to output to the console, Log will output to LogCat which you can find in Ecl...
Can I change the viewport meta tag in mobile safari on the fly?
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