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MySQL select 10 random rows from 600K rows fast
...t handling several cases, from simple, to gaps, to non-uniform with gaps.
http://jan.kneschke.de/projects/mysql/order-by-rand/
For most general case, here is how you do it:
SELECT name
FROM random AS r1 JOIN
(SELECT CEIL(RAND() *
(SELECT MAX(id)
...
Xcode Find and replace in all project files
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Can you determine if Chrome is in incognito mode via a script?
...Chrome: *
Yes. The FileSystem API is disabled in incognito mode. Check out https://jsfiddle.net/w49x9f1a/ when you are and aren't in incognito mode.
Sample code:
var fs = window.RequestFileSystem || window.webkitRequestFileSystem;
if (!fs) {
console.log("check failed?");
} else...
PHP: Return all dates between two dates in an array [duplicate]
...te('Y-m-d',$iDateFrom));
}
}
return $aryRange;
}
source: http://boonedocks.net/mike/archives/137-Creating-a-Date-Range-Array-with-PHP.html
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rspec 3 - stub a class method
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Django South - table already exists
...debase (make sure they were up-to-date with models and schema first).
ref: http://south.readthedocs.org/en/latest/convertinganapp.html
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How to extract text from a PDF? [closed]
...ndows : simply named pdftotext. This tool is a part of the xpdf library.
http://en.wikipedia.org/wiki/Pdftotext
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Instance v state variables in react.js
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Java: getMinutes and getHours
... appropriate constant like HOUR_OF_DAY or so to read the values you need.
http://java.sun.com/javase/6/docs/api/java/util/Calendar.html
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What is the Bash equivalent of Python's pass statement
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