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Does MySQL foreign_key_checks affect the entire database?
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edited Oct 9 '18 at 15:54
Giacomo1968
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Select first 4 rows of a data.frame in R
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Use head:
dnow <- data.frame(x=rnorm(100), y=runif(100))
head(dnow,4) ## default is 6
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Importing from a relative path in Python
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EDIT Nov 2014 (3 years later):
Python 2.6 and 3.x supports proper relative imports, where you...
What is the meaning of the term “free function” in C++?
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regex for matching something if it is not preceded by something else
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What is the maximum characters for the NVARCHAR(MAX)?
...yte of storage.
Since NVARCHAR uses 2 bytes per character, that's approx. 1 billion characters.
Leo Tolstoj's War and Peace is a 1'440 page book, containing about 600'000 words - so that might be 6 million characters - well rounded up. So you could stick about 166 copies of the entire War and Peac...
Why do all browsers' user agents start with “Mozilla/”?
...ory.
In summary:
Mozilla browser gets released, with User-Agent Mozilla/1.0 (Win3.1). It is publicly renamed to Netscape, but in its User-Agent it keeps its original name .
Internet Explorer is released. It spoofs Netscape by starting its User-Agent with Mozilla/ because web servers were routinel...
How do I make a textarea an ACE editor?
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As far as I understood the idea of Ace, you shouldn't make a textarea an Ace editor itself. Yo...
Why is not in HTML 5 Tag list while is?
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Remember, the tags are meant to be semantic, not presentational. There is such a thing in Engl...
Proper way to catch exception from JSON.parse
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edited Dec 8 '16 at 20:32
Samuel Bolduc
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