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Is it possible to specify condition in Count()?
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Most common way of writing a HTML table with vertical headers?
...in a table should contain an equal number of columns (TD). Your header has 1 while the body has 3. You should use the colspan attribute to fix that.
Reference: "The THEAD, TFOOT, and TBODY sections must contain the same number of columns." - Last paragraph of section 11.2.3.
With that being said, ...
When should I use a composite index?
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You should use a composite index when you are using queries that benefit from it. A composite ...
Data structure for loaded dice?
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You are looking for the alias method which provides a O(1) method for generating a fixed discr...
Change the name of a key in dictionary
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How do you extract a column from a multi-dimensional array?
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>>> import numpy as np
>>> A = np.array([[1,2,3,4],[5,6,7,8]])
>>> A
array([[1, 2, 3, 4],
[5, 6, 7, 8]])
>>> A[:,2] # returns the third columm
array([3, 7])
See also: "numpy.arange" and "reshape" to allocate memory
Example: (Allocating a ar...
How to do a case sensitive search in WHERE clause (I'm using SQL Server)?
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Can be done via changing the Collation. By default it is case insensitive.
Excerpt from the l...
How to convert a factor to integer\numeric without loss of information?
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