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Foreign Key to non-primary key

... 20 As others have pointed out, ideally, the foreign key would be created as a reference to a prima...
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Should I use a data.frame or a matrix?

... go back from 1-6 to a-f? – YJZ Jul 20 '15 at 14:40 1 @YZhang You'd need to store the labels for ...
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Why can't yield return appear inside a try block with a catch?

...(Exception){} – Brian Oct 26 '10 at 20:28 ...
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live output from subprocess command

... answered Aug 24 '13 at 20:51 torektorek 289k3636 gold badges375375 silver badges489489 bronze badges ...
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CSS selector for first element with class

...nswer. – BoltClock♦ Feb 13 '13 at 20:19 4 ...
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Accessing inactive union member and undefined behavior?

... representation. indicating that this is not required by the C standard. 2016-01-05: Through the comments I was linked to C99 Defect Report #283 which adds a similar text as a footnote to the C standard document: 78a) If the member used to access the contents of a union object is not the same as ...
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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?

...l Spiewak 51.1k1111 gold badges101101 silver badges120120 bronze badges 4 ...
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Node.js / Express.js - How does app.router work?

... | edited Jun 20 at 9:12 Community♦ 111 silver badge answered Oct 2 '12 at 18:09 ...
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Reverse a string in Python

...) def main(): longstring = ''.join(random.choices("ABCDEFGHIJKLM", k=2000)) functions = [(list_comprehension, 'list_comprehension', longstring), (reverse_func, 'reverse_func', longstring), (reverse_reduce, 'reverse_reduce', longstring), (r...
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How do you track record relations in NoSQL?

... 20 "you should not use a NoSQL solution if you need to use the data in a relational way" - So how do others running NoSQL get away with it? Ho...