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What is sharding and why is it important?

...ng is based on some real-world aspect of the data (e.g. European customers vs. American customers) then it may be possible to infer the appropriate shard membership easily and automatically, and query only the relevant shard. Some more information about sharding: Firstly, each database server ...
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Is Dvorak typing appropriate for programming? [closed]

... programming languages you use, variable naming conventions (CamelCase vs. underscores) and what editor you use. In the end it's a matter of personal preference. You'd might want to remap the AltGr sequences to punctuation symbols you use often. ...
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Error :Request header field Content-Type is not allowed by Access-Control-Allow-Headers

I created an mvc4 web api project using vS2012. I used following tutorial to solve the Cross-Origin Resource Sharing, "http://blogs.msdn.com/b/carlosfigueira/archive/2012/07/02/cors-support-in-asp-net-web-api-rc-version.aspx". It is working successfully, and i post data from client side to server s...
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How to count the number of true elements in a NumPy bool array

... bools = np.random.uniform(size=1000) >= 0.5" "np.count_nonzero(bools)" vs. python -m timeit -s "import numpy as np; bools = np.random.uniform(size=1000) >= 0.5" "sum(bools)" – chbrown Nov 19 '13 at 21:10 ...
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Declare slice or make slice?

... Can i say the same for map? var m map[string]int vs m:= make(map[string]int) ? Thanks. – joshua Mar 6 '15 at 7:46 11 ...
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What's the difference between struct and class in .NET?

...ssions, iterator blocks, and the already mentioned boxed values. But stack vs heap allocation is a implementation detail and may be subject to change. Eric lippart discusses this here. I've downvoted, but will happily remove it if you update. – Simon P Stevens ...
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Difference between return and exit in Bash functions

... Thanks Mike S, yeah I agree that the simplest example best explains exit vs return. The other comments are certainly valid, and should be considered for more advanced bash coders ;-) – Mike Q Oct 13 '16 at 13:46 ...
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NameError: global name 'xrange' is not defined in Python 3

...hat you are doing, most likely there will be more problems beyond xrange() vs. range(). For the record, what you are seeing is not a syntax error but a runtime exception instead. If you do know what your are doing and are actively making a Python 2 codebase compatible with Python 3, you can brid...
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(-2147483648> 0) returns true in C++?

... community wiki 15 revs, 2 users 99%qPCR4vir 3 ...
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How does the following LINQ statement work?

... This is called deferred execution. -- Suprotim Agarwal, "Deferred vs Immediate Query Execution in LINQ" There is another execution called Immediate Query Execution, which is useful for caching query results. From Suprotim Agarwal again: To force immediate execution of a query that doe...