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ALTER TABLE to add a composite primary key
...rson , place , thing . There can be duplicate persons, duplicate places, and duplicate things, but there can never be a dupicate person-place-thing combination.
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What is the difference between and ?
What is the difference between and ?
11 Answers
11
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What's the difference between streams and datagrams in network programming?
...the call, the other answers, you say hello to each other (SYN/ACK in TCP), and then you exchange information. Once you are done, you say goodbye (FIN/ACK in TCP). If one side doesn't hear a goodbye, they will usually call the other back since this is an unexpected event; usually the client will re...
AngularJS with Django - Conflicting template tags
...ider.endSymbol('}]}');
});
Keep in mind two things:
mixing server-side and client-side templates is rarely a good idea and should be used with caution. The main issues are: maintainability (hard to read) and security (double interpolation could expose a new security vector - e.g. while escaping...
Java Persistence / JPA: @Column vs @Basic
What is the difference between @Column and @Basic annotations in JPA? Can they be used together? Should they be used together? Or does one of them suffice?
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How to use background thread in swift?
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And if someone wants a more Swift like syntax, I've created Async that adds some sugar to the syntax like Async.background {}
– tobiasdm
Sep 13 '14 at 21:50
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How to version REST URIs
...f that resource? Does REST make a distinction between the representation and the resource?
– Cheeso
Jun 9 '09 at 20:16
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How to sort two lists (which reference each other) in the exact same way
...rt(); zip(*tups)
100000 loops, best of 3: 2.84 us per loop
On the other hand, for larger lists, the one-line version could be faster:
>>> %timeit zip(*sorted(zip(list1, list2)))
100 loops, best of 3: 8.09 ms per loop
>>> %timeit tups = zip(list1, list2); tups.sort(); zip(*tups)
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Why are properties without a setter not serialized
I have a serializable class and one of the properties in my class generates a Guid in the getter. The property implements no setter and is ignores during serialization. Why is that and do I always have to implement a setter in order for my property to be serialized.
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Should we pass a shared_ptr by reference or by value?
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This question has been discussed and answered by Scott, Andrei and Herb during Ask Us Anything session at C++ and Beyond 2011. Watch from 4:34 on shared_ptr performance and correctness.
Shortly, there is no reason to pass by value, unless the goal is to sha...