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Difference between a theta join, equijoin and natural join
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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,...
Tool for comparing 2 binary files in Windows [closed]
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vBinDiff is really a great tool. thanks
– mustafa
Nov 25 '11 at 17:21
4
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Print all properties of a Python Class [duplicate]
...rint for example in order of declaration, and you do not want to do it manually, check this
– Matteo A
Aug 14 '15 at 8:41
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When to use pip requirements file versus install_requires in setup.py?
I'm using pip with virtualenv to package and install some Python libraries.
4 Answers
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What are the best practices for using a GUID as a primary key, specifically regarding performance?
I have an application that uses GUID as the Primary Key in almost all tables and I have read that there are issues about performance when using GUID as Primary Key. Honestly, I haven't seen any problem, but I'm about to start a new application and I still want to use the GUIDs as the Primary Keys, b...
Global variables in Java
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public static int b;
}
now you can access a and b from anywhere
by calling
Example.a;
Example.b;
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Header files for x86 SIMD intrinsics
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These days you should normally just include <immintrin.h>. It includes everything.
GCC and clang will stop you from using intrinsics for instructions you haven't enabled at compile time (e.g. with -march=native or -mavx2 -mbmi2 -mpopcnt -mfma ...
How does Go update third-party packages?
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go get will install the package in the first directory listed at GOPATH (an environment variable which might contain a colon separated list of directories). You can use go get -u to update existing packages.
You can also use go get -u all t...
Failed to allocate memory: 8
...e, with 6GB sitting free while the Android emulator tells me that it can't allocate 1GB?
– Strozykowski
Nov 11 '11 at 1:38
5
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What does MVW stand for?
... considered the ViewModel that is being decorated by a
function that we call a Controller.
Being able to categorize a framework and put it into one of the MV*
buckets has some advantages. It can help developers get more
comfortable with its apis by making it easier to create a mental mode...