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How to round the minute of a datetime object
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edited Jul 23 '18 at 17:43
Prune
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Retrieving the last record in each group - MySQL
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MySQL 8.0 now supports windowing functions, like almost all popular SQL implementations. With this standard syntax, we can write greatest-n-per-group queries:
WITH ranked_messages AS (
SELECT m.*, ROW_NUMBER() OVER (PARTITION BY...
When to use leading slash in gitignore
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answered Jul 18 '16 at 10:07
solstice333solstice333
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How to swap keys and values in a hash
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286
Ruby has a helper method for Hash that lets you treat a Hash as if it was inverted (in essence,...
npm install from Git in a specific version
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Converting int to bytes in Python 3
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185
That's the way it was designed - and it makes sense because usually, you would call bytes on an...
base64 encoded images in email signatures
.../png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red dot">
http://en.wikipedia.org/wiki/Data_URI_scheme
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What is “(program)” in Chrome debugger’s profiler?
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edited Apr 8 '17 at 13:28
Michał Perłakowski
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SQLite - How do you join tables from different databases?
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128
If ATTACH is activated in your build of Sqlite (it should be in most builds), you can attach ano...
Numpy array assignment with copy
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edited Dec 7 '18 at 21:41
answered Oct 30 '13 at 7:59
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