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quick random row selection in Postgres
...or(random()*N) LIMIT 1;
Consider a table of 2 rows; random()*N generates 0 <= x < 2 and for example SELECT myid FROM mytable OFFSET 1.7 LIMIT 1; returns 0 rows because of implicit rounding to nearest int.
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What does f+++++++++ mean in rsync logs?
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201
Let's take a look at how rsync works and better understand the cryptic result lines:
1 - A hug...
How to create an installer for a .net Windows Service using Visual Studio
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In the service project do the following:
In the solution explorer double click your services .c...
Css pseudo classes input:not(disabled)not:[type=“submit”]:focus
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edited Apr 27 '18 at 15:01
answered Feb 9 '12 at 8:11
Wes...
Log all requests from the python-requests module
...EBUG:urllib3.connectionpool:Starting new HTTP connection (1): httpbin.org:80
DEBUG:urllib3.connectionpool:http://httpbin.org:80 "GET /get?foo=bar&baz=python HTTP/1.1" 200 366
Depending on the exact version of urllib3, the following messages are logged:
INFO: Redirects
WARN: Connection pool f...
What does Html.HiddenFor do?
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answered Oct 5 '10 at 18:43
Justin NiessnerJustin Niessner
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catch all unhandled exceptions in ASP.NET Web Api
...nwell Yes, Web API 2.1 corresponds to System.Web.Http assembly version 5.1.0. So you need this version or above to use the solution described here. See the nuget package versions
– decates
Jun 19 '14 at 10:54
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vim command to restructure/force text to 80 columns
...tomatically set the width of text in vim using set textwidth (like Vim 80 column layout concerns ). What I am looking for is something similar to = (the indent line command) but to wrap to 80. The use case is sometimes you edit text with textwidth and after joining lines or deleting/adding text...
How to delete files older than X hours
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What's the result of += in C and C++?
...perand after the assignment has taken place.
EDIT : The behavior of (i+=10)+=10 in C++ is undefined in C++98, but well defined in C++11. See this answer to the question by NPE for the relevant portions of the standards.
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