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How does database indexing work? [closed]
Given that indexing is so important as your data set increases in size, can someone explain how indexing works at a database-agnostic level?
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Why is “import *” bad?
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http://docs.python.org/tutorial/modules.html
Note that in general the practice of importing * from a module or package is frowned upon, since it often causes poorly readable code.
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Xcode can only refactor C and Objective-C code. How to rename swift class name in Xcode 6?
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Unfortunately, Apple hasn't gotten around to implementing it yet.
See http://www.quora.com/Why-isnt-there-a-refactoring-feature-for-Swift-language-in-Xcode-6 for more information.
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impro...
Purpose of Activator.CreateInstance with example?
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Here's an MSDN article that explains it's application in more detail:
http://msdn.microsoft.com/en-us/library/wccyzw83.aspx
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impr
Python read-only property
I don't know when attribute should be private and if I should use property.
10 Answers
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Update relationships when saving changes of EF4 POCO objects
...context is closed after request processing and entity content is passed as HTTP response to the client. Next HTTP request provides modified content of the entity which has to be recreated, attached to new context and persisted. Recreation usually happends outside of the context scope (layered archit...
Force line-buffering of stdout when piping to tee
Usually, stdout is line-buffered. In other words, as long as your printf argument ends with a newline, you can expect the line to be printed instantly. This does not appear to hold when using a pipe to redirect to tee .
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Portable way to get file size (in bytes) in shell?
...wn program (really small) to display just the size. More information here: http://fwhacking.blogspot.com/2011/03/bfsize-print-file-size-in-bytes-and.html
The two most clean ways in my opinion with common Linux tools are:
$ stat -c %s /usr/bin/stat
50000
$ wc -c < /usr/bin/wc
36912
But I just...
How to get names of classes inside a jar file?
I have a JAR file and I need to get the name of all classes inside this JAR file. How can I do that?
12 Answers
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How to search for a part of a word with ElasticSearch
I've recently started using ElasticSearch and I can't seem to make it search for a part of a word.
10 Answers
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