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With MySQL, how can I generate a column containing the record index in a table?
...@curRow + 1 AS row_number
FROM league_girl l
JOIN (SELECT @curRow := 0) r;
The JOIN (SELECT @curRow := 0) part allows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE league_girl (position int, username varchar(10), score int);
INSERT INTO leagu...
Calculate total seconds in PHP DateInterval
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209
Could you not compare the time stamps instead?
$now = new DateTime('now');
$diff = $date->...
how to release localhost from Error: listen EADDRINUSE
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101
It means the address you are trying to bind the server to is in use. Try another port or close ...
Is null reference possible?
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edited Dec 6 '10 at 9:05
answered Dec 6 '10 at 8:46
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NodeJS: How to get the server's port?
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});
// Only listen on $ node app.js
if (!module.parent) {
app.listen(3000);
console.log("Express server listening on port %d", app.address().port)
}
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Python strftime - date without leading 0?
When using Python strftime , is there a way to remove the first 0 of the date if it's before the 10th, ie. so 01 is 1 ? Can't find a % thingy for that?
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What's the best way to set a single pixel in an HTML5 canvas?
...e
var d = id.data; // only do this once per page
d[0] = r;
d[1] = g;
d[2] = b;
d[3] = a;
myContext.putImageData( id, x, y );
Use fillRect() to draw a pixel (there should be no aliasing issues):
ctx.fillStyle = "rgba("+r+","+g+","+b+","+(a/255)+")";
ctx.fillRect...
MySQL Conditional Insert
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edited Feb 4 '19 at 15:08
Community♦
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answered May 27 '09 at 4:31
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Using NSPredicate to filter an NSArray based on NSDictionary keys
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answered Jun 6 '09 at 0:18
surakensuraken
1,61611 gold badge1010 silver badges44 bronze badges
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Minimum and maximum date
...Javascript Date object. I found that the minimum date is something like 200000 B.C., but I couldn't get any reference about it.
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