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Pad a string with leading zeros so it's 3 characters long in SQL Server 2008
...
If the field is already a string, this will work
SELECT RIGHT('000'+ISNULL(field,''),3)
If you want nulls to show as '000'
It might be an integer -- then you would want
SELECT RIGHT('000'+CAST(field AS VARCHAR(3)),3)
As required b...
Tetris-ing an array
...ding the tree. Why then a tree at all? I mean if you start with an array already. If you can change the storage to just using a trie instead of arrays I guess it makes sense.
– Ben Schwehn
Jul 18 '10 at 15:21
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The Guava library: What are its most useful and/or hidden features? [closed]
...dicates, I've found this useful. I give an example of one way to make this read nicely here.
ComparisonChain is a small, easily overlooked class that's useful when you want to write a comparison method that compares multiple values in succession and should return when the first difference is found. ...
How can I implement an Access Control List in my Web MVC application?
...w you use this sort of structure:
// assuming that you have two objects already: $currentUser and $controller
$acl = new AccessControlList( $currentUser );
$controller = new SecureContainer( $controller, $acl );
// you can execute all the methods you had in previous controller
// only now they wi...
What is managed or unmanaged code in programming?
...efully!) secure framework which handles dangerous things like memory and threads for you. In modern usage this frequently means .NET but does not have to.
An application program that is executed within a runtime engine
installed in the same machine. The application cannot run without it.
T...
Reversing a linked list in Java, recursively
...uction from newbs, which is essentially what this pattern is. I recommend reading the Little Lisper if you really want to nail this type of problem.
– plinth
Dec 10 '08 at 11:19
4...
Check if application is on its first run [duplicate]
...llationFile(installation);
}
sID = readInstallationFile(installation);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
return launchFlag;
}
private static ...
Using pickle.dump - TypeError: must be str, not bytes
...r running into exactly the same problem, I saw where the need for "binary" reading/writing was mentioned in the docs for pickle.dump() and pickle.load(). Both places, this was mentioned only in passing near the middle of the function explanation. Someone should make this clearer.
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How to fix getImageData() error The canvas has been tainted by cross-origin data?
...local files as being on a different domain, otherwise website owners could read your local files. You need to request images from the same domain, or the headers in the response to your request need to tell the browser that it's okay for code from other domains to read that file.
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How do I print a double value with full precision using cout?
...ill give you the 100% accurate precision of the double... and be utterly unreadable because humans can't read IEEE double format ! Wikipedia has a good write up on how to interpret the binary bits.
In newer C++, you can do
std::cout << std::hexfloat << 1.1;
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