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How to reset a single table in rails?
I want the primary key values to start from 1 again.
8 Answers
8
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Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...ransposing a matrix of size 2^n is slower than transposing one of size 2^n+1 . For small values of n , the difference is not major.
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URL: Username with @
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187
You need to URL encode the @ as %40.
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What is the meaning of “__attribute__((packed, aligned(4))) ”
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160
Before answering, I would like to give you some data from Wiki
Data structure alignment is ...
is node.js' console.log asynchronous?
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102
Update: Starting with Node 0.6 this post is obsolete, since stdout is synchronous now.
Well l...
What are the big improvements between guava and apache equivalent libraries?
... "modern"
Apache Commons is a really mature library, but it's also almost 10 years old, and targets Java 1.4. Guava was open sourced in 2007, targets Java 5, and thus Guava greatly benefits from the Java 5 features: generics, varargs, enums, and autoboxing.
According to the Guava developers, gener...
Extract a substring from a string in Ruby using a regular expression
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135
String1.scan(/<([^>]*)>/).last.first
scan creates an array which, for each <item...
When applying a patch is there any way to resolve conflicts?
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+100
To generate your patch do the following:
git format-patch --stdout first_commit^..last_commit > changes.patch
Now when you are...
Can a JSON value contain a multiline string
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edited Dec 30 '13 at 12:37
answered May 22 '13 at 11:08
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Warning “Do not Access Superglobal $_POST Array Directly” on Netbeans 7.4 for PHP
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edited Nov 9 '13 at 10:40
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