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How to delete duplicate rows in SQL Server?
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23 Answers
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Accessing class variables from a list comprehension in the class definition
... comprehension within the class definition? The following works in Python 2 but fails in Python 3:
5 Answers
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Changing Vim indentation behavior by file type
...the file type? For instance, if I open a Python file it should indent with 2 spaces, but if I open a Powershell script it should use 4 spaces.
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Apache Prefork vs Worker MPM
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Prefork and worker are two type of MPM apache provides. Both have their merits and demerits.
B...
What are the GCC default include directories?
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answered Jul 12 '11 at 15:01
Ihor KaharlichenkoIhor Kaharlichenko
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What are the mathematical/computational principles behind this game?
...into the soup and you have the question:
Can we have a geometry with just 2 points? With 3 points? With 4? With 7?
There are still open questions regarding this problem but we do know this:
If there are geometries with Q points, then Q = n^2 + n + 1 and n is called the order of the geometry.
The...
Maximum and Minimum values for ints
... the maximum value representable by an unsigned word will be sys.maxsize * 2 + 1, and the number of bits in a word will be math.log2(sys.maxsize * 2 + 2). See this answer for more information.
Python 2
In Python 2, the maximum value for plain int values is available as sys.maxint:
>>> sy...
How do I exchange keys with values in a dictionary?
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Python 2:
res = dict((v,k) for k,v in a.iteritems())
Python 3 (thanks to @erik):
res = dict((v,k) for k,v in a.items())
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What's the difference between lapply and do.call?
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127
There is a function called Map that may be similar to map in other languages:
lapply returns ...
Redirect all output to file [duplicate]
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That part is written to stderr, use 2> to redirect it. For example:
foo > stdout.txt 2&...