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SQL select only rows with max value on a column [duplicate]
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27 Answers
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Input and output numpy arrays to h5py
... using h5py reduces the file size considerably. So, let's say I have the 2D numpy array named A . How do I save it to an h5py file?
Also, how do I read the same file and put it as a numpy array in a different code, as I need to do manipulations with the array?
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Remove useless zero digits from decimals in PHP
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24 Answers
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When to use inline function and when not to use it?
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211
Avoiding the cost of a function call is only half the story.
do:
use inline instead of #def...
npm install error - MSB3428: Could not load the Visual C++ component “VCBuild.exe”
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edited Nov 26 '19 at 15:38
Ahmed Ashour
4,1191010 gold badges2828 silver badges4646 bronze badges
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rails 3 validation on uniqueness on multiple attributes
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In Rails 2, I would have written:
validates_uniqueness_of :zipcode, :scope => :recorded_at
In Rails 3:
validates :zipcode, :uniqueness => {:scope => :recorded_at}
For multiple attributes:
validates :zipcode, :uniquenes...
Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary?
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edited May 23 '17 at 12:02
Community♦
111 silver badge
answered Aug 8 '09 at 19:09
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Superiority of unnamed namespace over static?
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2 Answers
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How do you make lettered lists using markdown?
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Andrew Mascillaro
3691212 bronze badges
answered Mar 15 '13 at 0:01
creativecodercreativecoder
1,191...
How to select date from datetime column?
I have a column of type "datetime" with values like 2009-10-20 10:00:00
8 Answers
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