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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?
...of conditions. I could easily construct a counter example that showed the opposite. Does that make sense?
– whitneyland
Jul 5 '12 at 0:31
14
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How to configure postgresql for the first time?
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This will work in many cases because many sites will have pg_hba.conf authenticate the postgres db user against the postgres system account (peer method). Successful login however, will ultimately depend on the contents of pg_hba.conf for any particular site.
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Delete fork dependency of a GitHub repository
...ository on GitHub.com or GitHub Enterprise, contact GitHub support or your site administrator, respectively."
– Thomas Moulard
Oct 23 '14 at 8:24
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How can I get a list of locally installed Python modules?
...stall .
running install
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Installed /private/tmp/test_env/lib/python2.7/site-packages/enum34-1.0-py2.7.egg
Finished processing dependencies for behave==1.2.5a1
If we run the aforementioned solution from /tmp
>>> import pip
>>> sorted(["%s==%s" % (i.key, i.version) for i in pi...
Pure CSS to make font-size responsive based on dynamic amount of characters
...ne's screen width is, say. 1100, its going to load the 1024 CSS rule, your site shouldn't break. This renders accounting for exotic resolutions by trying to create a responsive rule unnecessary, and the idea that you need to code for every possible setup pixel by pixel is ridiculous, unless someone'...
Difference between Big-O and Little-O Notation
..., both multiplicative and additive). A lower bound of ????(n) means on the opposite that we built some examples where the problem solved by this algorithm couldn't be solved in less than n steps (again ignoring multiplicative and additive constants). The number of steps is at most n and at least n s...
Is the sizeof(some pointer) always equal to four?
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it's not true in x32-abi sites.google.com/site/x32abi
– phuclv
Mar 5 '14 at 9:20
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position: fixed doesn't work on iPad and iPhone
...fixed elements could get in the way on a small screen.
The Quirksmode.org site has a very good blog post that explains the problem: http://www.quirksmode.org/blog/archives/2010/12/the_fifth_posit.html
Also see this page for a compatibility chart showing which mobile browsers support position:fixed...
Is calculating an MD5 hash less CPU intensive than SHA family functions?
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weird, my air is the same as yours and I got opposite benchmark results. with 8192 bytes: md5 305549.52k; sha1 204668.57k
– Carlos Fontes
Jan 18 '14 at 16:58
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MongoDB or CouchDB - fit for production? [closed]
...10gen (developers of MongoDB) so I'm a bit biased, but I also manage a few sites that are using MongoDB in production.
businessinsider has been using mongo in production for over a year now. They are using it for everything from users and blog posts, to every image on the site.
shopwiki is using ...