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What are the options for storing hierarchical data in a relational database? [closed]
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My favorite answer is as what the first sentence in this thread suggested. Use an Adjacency Lis...
How dangerous is it to compare floating point values?
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Float vs Decimal in ActiveRecord
...esent a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly.
That's why there is a Decimal format. If you do this:
irb:001:0> "%.47f" % (1.0/10)
=> "0.100000000000000005551115123125...
Android Studio 0.4 Duplicate files copied in APK META-INF/LICENSE.txt
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Finding Number of Cores in Java
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edited Nov 17 '11 at 9:03
answered Jan 21 '11 at 13:58
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How to remove all leading zeroes in a string
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Best way to iterate through a Perl array
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In terms of speed: #1 and #4, but not by much in most instances.
You could write a benchmark to confirm, but I suspect you'll find #1 and #4 to be slightly faster because the iteration work is done in C instead of Perl, and no needless copying ...
Retrieve list of tasks in a queue in Celery
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Sass negative variable value?
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Try it like this
margin: 0 (-$pad) 20px (-$pad);
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Application auto build versioning
...variable in importpath named name to
value.
Note that before Go 1.5 this option took two separate arguments.
Now it takes one argument split on the first = sign.
As part of your build process, you could set a version string variable using this. You can pass this through the go to...