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Difference between a theta join, equijoin and natural join

... A theta join allows for arbitrary comparison relationships (such as ≥). An equijoin is a theta join using the equality operator. A natural join is an equijoin on attributes that have the same name in each relationship. Additionally,...
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Why not inherit from List?

... What is the correct C# way of representing a data structure, which, "logically" (that is to say, "to the human mind") is just a list of things with a few bells and whistles? Ask any ten non-computer-programmer people who are familiar with the existence of football to fill in the blank: A foot...
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Javascript regex returning true.. then false.. then true.. etc [duplicate]

.... In JavaScript, global regexen have state: you call them (with exec, test etc.) the first time, you get the first match in a given string. Call them again and you get the next match, and so on until you get no match and it resets to the start of the next string. You can also write regex.lastIndex= ...
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How to include package data with setuptools/distribute?

When using setuptools/distribute, I can not get the installer to pull in any package_data files. Everything I've read says that the following is the correct way to do it. Can someone please advise? ...
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Get all object attributes in Python? [duplicate]

Is there a way to get all attributes/methods/fields/etc. of an object in Python? 4 Answers ...
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How to list the contents of a package using YUM?

... There is a package called yum-utils that builds on YUM and contains a tool called repoquery that can do this. $ repoquery --help | grep -E "list\ files" -l, --list list files in this package/group Combined into one example: $ r...
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Why does GCC generate such radically different assembly for nearly the same C code?

...e(). I'll spare you the assembly, but it is identical - register names and all. Step 2: Mathematical reduction: x + (y ^ x) = y sign can only take one of two values, 0 or 0x80000000. When x = 0, then x + (y ^ x) = y then trivial holds. Adding and xoring by 0x80000000 is the same. It flips the sign...
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MIN and MAX in C

Where are MIN and MAX defined in C, if at all? 14 Answers 14 ...
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How to duplicate sys.stdout to a log file?

...est way to accomplish logging when a python app is making a lot of system calls? 17 Answers ...
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Disable a method in a ViewSet, django-rest-framework

...ethods but I did not able to find out how to disable the PATCH method specially if you are using routers. – Muneeb Ahmad Mar 31 '15 at 14:56 3 ...