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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?

...correct' way is to get all the wheels, ordered by CarId (1 select), and if more details than the CarId are required, make a second query for all cars (2 queries total). Printing things out is now optimal, and no indexes or secondary storage were required (you can iterate over results, no need to dow...
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What do ellipsis […] mean in a list?

...swer seems to cover it Ignacio's link describes some possible uses This is more a topic of data structure design than programming languages, so it's unlikely that any reference is found in Python's official documentation sh...
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Visual Studio opens the default browser instead of Internet Explorer

... I usually also just add it to the solution instead of a project. It makes more sense that way for especially if I have a multi-web-project solution. Oh and you don't have to worry about it being deployed with your source using Web Deploy VS2010 feature. – gligoran ...
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Using HTML5/Canvas/JavaScript to take in-browser screenshots

...oxy was available. Still quite limited browser compatibility (not because more couldn't be supported, just haven't had time to make it more cross browser supported). For more information, have a look at the examples here: http://hertzen.com/experiments/jsfeedback/ edit The html2canvas script is ...
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Crash logs generated by iPhone Simulator?

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What's the difference between using CGFloat and float?

...a finite number of bits. You can overflow both of them by needing to store more bits than they can hold. – Pwner Feb 24 '15 at 19:55  |  show ...
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Unable to copy ~/.ssh/id_rsa.pub

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One-liner to check whether an iterator yields at least one element?

...ver, it would help to know what the OP is trying to do? There's probably a more elegant solution (this IS Python, after all). – rossipedia Jun 24 '10 at 22:59 ...
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Pointer to pointer clarification

...(Technically I should say "lvalue" instead of "variable", but I feel it is more clear to describe mutable storage locations as "variables".) So we have variables: int i = 5, j = 6; int *ip1 = &i, *ip2 = &j; Variable ip1 contains a pointer. The & operator turns i into a pointer and th...
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How do I use JDK 7 on Mac OSX?

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