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SQL to find the number of distinct values in a column
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answered Sep 26 '08 at 19:54
Noah GoodrichNoah Goodrich
22.8k1212 gold badges6161 silver badges9191 bronze badges
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Running a cron every 30 seconds
Ok so I have a cron that I need to run every 30 seconds.
19 Answers
19
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Why does .NET foreach loop throw NullRefException when collection is null?
...umerable.Empty<int>())
{
System.Console.WriteLine(string.Format("{0}", i));
}
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Removing “NUL” characters
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105
This might help, I used to fi my files like this:
http://security102.blogspot.ru/2010/04/findre...
In git, is there a simple way of introducing an unrelated branch to a repository?
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answered Nov 26 '10 at 21:33
tcovotcovo
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How to get the number of days of difference between two dates on mysql?
... the calculation
In your case, you'd use :
mysql> select datediff('2010-04-15', '2010-04-12');
+--------------------------------------+
| datediff('2010-04-15', '2010-04-12') |
+--------------------------------------+
| 3 |
+--------------------------------...
How to insert element as a first child?
..."<div class='child-div'>some text</div>");
Demo
var i = 0;
$(document).ready(function () {
$('.add').on('click', function (event) {
var html = "<div class='child-div'>some text " + i++ + "</div>";
$("#parent-div").prepend(html);
});
});
&...
Base64 length calculation?
... chars resulting from the rounding up to a multiple of 4 will obviously be 0, 1, 2 or 3.
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Read and write a String from text file
...archPathDomainMask.AllDomainsMask, true) as? [String] {
let dir = dirs[0] //documents directory
let path = dir.stringByAppendingPathComponent(file);
let text = "some text"
//writing
text.writeToFile(path, atomically: false, encoding: NSUTF8StringEncoding, error: nil);
//rea...
Correct way to write loops for promise.
...dition, action));
});
promiseFor(function(count) {
return count < 10;
}, function(count) {
return db.getUser(email)
.then(function(res) {
logger.log(res);
return ++count;
});
}, 0).then(console.log.bind(console, 'all done'));
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