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difference between primary key and unique key
...ultiple columns, e.g. Primary key (CustomerID, ProductID). This is called composite primary key. This is to clarify the first point, as it might be take as it is (read one key => one column ) by new comer to sql : )
– ken
Apr 10 '14 at 13:53
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Negation in Python
...lues"])
proc.wait()
For your specific example (as Neil said in the comments), you don't have to use the subprocess module, you can simply use os.mkdir() to get the result you need, with added exception handling goodness.
Example:
blues_sounds_path = "/usr/share/sounds/blues"
if not os.path...
Can you build dynamic libraries for iOS and load them at runtime?
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Anybody know why that is? To me it just seems completely insane.
– Erik de Castro Lopo
Apr 29 '11 at 3:24
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How to find unused/dead code in java projects [closed]
...trumented to log when instances are created. And then a small script could compare these logs against the complete list of classes to find unused classes.
Of course, if you go at the method level you should keep performance in mind. For example, the methods could only log their first use. I dont kn...
Undoing a git bisect mistake
I'm doing a non-automated git bisect via command line. All is going well until I accidentally hit return on the wrong line in my command history, and rather than running the test, I run 'git bisect good' (or bad). Oops - I don't yet know if this commit should be marked good or bad, yet that's what I...
Post an empty body to REST API via HttpClient
... It looks like this is only in .NET framework 4.5? msdn.microsoft.com/en-us/library/…
– dan
Dec 28 '11 at 3:54
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Show pop-ups the most elegant way
...n modal popup.
The AngularUI bootstrap project (http://angular-ui.github.com/bootstrap/) has an excellent $modal service (used to be called $dialog prior to version 0.6.0) that is an implementation of a service to display partial's content as a modal popup.
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Regex: Specify “space or start of string” and “space or end of string”
...ch unicode words you have no choice but to use this instead: stackoverflow.com/a/6713327/1329367
– Mahn
Jan 27 '15 at 16:55
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How to determine if one array contains all elements of another array
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stackoverflow.com/questions/13553822/… is what I meant. Array#unique will explicitly fail that.
– Chris
Dec 5 '12 at 14:54
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