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MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
... ('Helen', 24),
('Katrina', 21),
('Samia', 22),
('Hui Ling', 25),
('Yumie', 29)
ON DUPLICATE KEY UPDATE
age = VALUES(age),
...
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Quick way to list all files in Amazon S3 bucket?
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answered Jul 27 '10 at 16:25
Zachary OzerZachary Ozer
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Retrieve the commit log for a specific line in a file?
... Matt McClureMatt McClure
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Get a pixel from HTML Canvas?
... color.
for (var i = 0, n = pix.length; i < n; i += 4) {
pix[i ] = 255 - pix[i ]; // red
pix[i+1] = 255 - pix[i+1]; // green
pix[i+2] = 255 - pix[i+2]; // blue
// i+3 is alpha (the fourth element)
}
// Draw the ImageData at the given (x,y) coordinates.
context.putImageData(imgd...
INT 10H 中断介绍 - C/C++ - 清泛网 - 专注C/C++及内核技术
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click() event is calling twice in jquery
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answered Jul 18 '11 at 11:25
ScottScott
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How do I find out which keystore was used to sign an app?
...k
The output will reveal the signature owner/issuer and MD5, SHA1 and SHA256 fingerprints of the APK file app.apk.
(Note that the -jarfile argument was introduced in Java 7; see the documentation for more details.)
Signature of a keystore
keytool -list -v -keystore release.jks
The output will...
How can I remove a pytz timezone from a datetime object?
...# datetime.datetime(2014, 10, 9, 10, 56, 9, 347444, tzinfo=tzoffset(None, -25200))
tmpDatetime = arrowObj.datetime
# datetime.datetime(2014, 10, 9, 10, 56, 9, 347444)
tmpDatetime = tmpDatetime.replace(tzinfo=None)
Why would you do this? One example is that mysql does not support timezones with it...
How to checkout in Git by date?
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RockyRocky
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heroku - how to see all the logs
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25
Also see individual streams/filters.
E.g tail only your application logs
heroku logs --sourc...