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What is database pooling?

..., the image doesn't say the most important thing. That is: Why keeping 10, 20, 30, ... number of connections opened is less costly for memory and overall system performance than opening one connection when required? How it can be? 30 vs. 1 is less costly? How? – Green ...
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What are the differences between “generic” types in C++ and Java?

... Makoto 92.9k2121 gold badges156156 silver badges200200 bronze badges answered Jan 31 '09 at 5:22 cletuscletus 561k152152 gold ...
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How to use XPath contains() here?

... 202 You are only looking at the first li child in the query you have instead of looking for any li...
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How to remove a field from params[:something]

... | edited Nov 9 '18 at 20:06 rmcsharry 3,83744 gold badges4545 silver badges7878 bronze badges answer...
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What is the meaning of the prefix N in T-SQL statements and when should I use it?

... answered Apr 5 '12 at 8:20 CurtCurt 92k6060 gold badges253253 silver badges337337 bronze badges ...
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Why does Popen.communicate() return b'hi\n' instead of 'hi'?

...ngs. – Pavel Šimerda Dec 13 '14 at 20:58 10 I'll answer myself, there's an option with cryptic n...
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What does numpy.random.seed(0) do?

...>>> print np.random.rand(4) [0.87008726 0.47360805 0.80091075 0.52047748] share | improve this answer | follow | ...
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How and/or why is merging in Git better than in SVN?

...t to others. – Spoike Mar 18 '10 at 20:21 24 I don't get your "too many experimental branches are...
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Verify if a point is Land or Water in Google Maps

... ocean. – Dr.Molle Mar 10 '12 at 10:20 @Tomas - not that I want to be ungreatefull or unrespectfull for fellow "stacke...
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Tuples( or arrays ) as Dictionary keys in C#

.... – Dustin Campbell Jun 5 '09 at 14:20 16 @jerryjvl and everyone else who finds this by Google li...