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SQL, Postgres OIDs, What are they and why are they useful?
...efault. Performing a SELECT * will now include this column. Note that this extra “surprise” column may break naïvely written SQL code.
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Best algorithm for detecting cycles in a directed graph [closed]
What is the most efficient algorithm for detecting all cycles within a directed graph?
14 Answers
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What is the difference between an Azure Web Site and an Azure Web Role
... servers other users' sites. You can scale your site up and down (at some extra charge) to make it more elastic as your resource needs shift.
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Calling class staticmethod within the class body?
... def stat_func():
return 42
_ANS = stat_func.__func__() # call the staticmethod
def method(self):
ret = Klass.stat_func()
return ret
As an aside, though I suspected that a staticmethod object had some sort of attribute storing the original function, I had no ...
Best way to do multiple constructors in PHP
...
<?php
class Student
{
public function __construct() {
// allocate your stuff
}
public static function withID( $id ) {
$instance = new self();
$instance->loadByID( $id );
return $instance;
}
public static function withRow( array $row ) {
...
Reverse colormap in matplotlib
...
The standard colormaps also all have reversed versions. They have the same names with _r tacked on to the end. (Documentation here.)
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How to update a pull request from forked repo?
...kup that I applied manually. Not very convenient if there is more than one extra commit though...
– Nagev
Mar 29 '17 at 14:46
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vs2008编译boost详细步骤 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...t --without-python --build-type=complete link=shared threading=multi install
(2)只编译 release 版本 regex 动态库，包括头文件和库文件
bjam --toolset=msvc-9.0 --prefix=D:\05_Computer\04_3rdPatry\02Boost\boost_1_44_0\output1 --with-regex link=shared threading=multi variant=rel...
Change all files and folders permissions of a directory to 644/755
How would I change all files to 644 and all folders to 755 using chmod from the linux command prompt? (Terminal)
8 Answ...
super() raises “TypeError: must be type, not classobj” for new-style class
...pe(OldStyle()) is the instance type, which does inherit from object. Basically, an old-style class just creates objects of type instance (whereas a new-style class creates objects whose type is the class itself). This is probably why the instance OldStyle() is an object: its type() inherits from ob...