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Is an index needed for a primary key in SQLite?

...x be explicitly created for it as well? SQLite does not appear to automatically create an index for a primary key column, but perhaps it indexes it anyway, given its purpose? (I will be searching on that column all the time). ...
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Fastest method to replace all instances of a character in a string [duplicate]

What is the fastest way to replace all instances of a string/character in a string in JavaScript? A while , a for -loop, a regular expression? ...
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How to print SQL statement in codeigniter model

... when i do print_r($query); nothing prints out at all – Technupe May 26 '11 at 16:50 1 ...
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Copy multiple files in Python

How to copy all the files present in one directory to another directory using Python. I have the source path and the destination path as string. ...
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JavaScript Date Object Comparison

...answered Sep 30 '11 at 6:50 gion_13gion_13 38.3k99 gold badges9090 silver badges101101 bronze badges ...
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“open/close” SqlConnection or keep open?

...th static methods. Each of these methods opens/closes SQL connection when called: 6 Answers ...
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Integrate ZXing in Android Studio

I'll start explaining all the steps I have done and in the end what is the problem. 5 Answers ...
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How to add a custom loglevel to Python's logging facility

...for my application, as I don't think that debug() is sufficient. Additionally log(5, msg) isn't what I want. How can I add a custom loglevel to a Python logger? ...
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What is the difference between String.Empty and “” (empty string)?

...ich makes string.Empty more efficient. In version 2.0 and later of .NET, all occurrences of "" refer to the same string literal, which means "" is equivalent to .Empty, but still not as fast as .Length == 0. .Length == 0 is the fastest option, but .Empty makes for slightly cleaner code. See the ...
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Is there any Rails function to check if a partial exists?

..., I'm using the following in my Rails 3/3.1 projects: lookup_context.find_all('posts/_form').any? The advantage over other solutions I've seen is that this will look in all view paths instead of just your rails root. This is important to me as I have a lot of rails engines. This also works in R...