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make: Nothing to be done for `all'
... @Mooncrater See gnu.org/software/make/manual/make.html#Rule-Syntax. Here reads: The recipe lines start with a tab character (or the first character in the value of the .RECIPEPREFIX variable; see Special Variables). The first recipe line may appear on the line after the prerequisites, with a tab ...
Postgresql query between date ranges
...
Read the documentation.
http://www.postgresql.org/docs/9.1/static/functions-datetime.html
I used a query like that:
WHERE
(
date_trunc('day',table1.date_eval) = '2015-02-09'
)
or
WHERE(date_trunc('day',table1.date_e...
How to make rpm auto install dependencies
... @Max13, that's yum localinstall and it is the same as the answer already posted here, with the already discussed downsides for situations where dependencies are not in yum repos (see the this method will not work unless [...] part).
– gertvdijk
Feb 21 '...
How to display the current year in a Django template?
...ythonanywhere.com/ which works fine as expected (Maybe, by the time you're reading this post, it would have stopped working because that's a free hosting so just try in code and see).
{% now 'Y' %}
You can visit & see it in the footer part where I have displayed the current year using the bel...
Have nginx access_log and error_log log to STDOUT and STDERR of master process
... Jon, what system are you on? On my system, /dev/stdout is world-readable symlink to /dev/fd/1 which is owned and read+writeable by my user.
– Patrick
Jul 29 '14 at 19:06
...
In C/C++ what's the simplest way to reverse the order of bits in a byte?
...we're talking about something that's simple to implement without copying a ready-made solution, creating the lookup table does still require another solution. (Of course one might do it by hand, but that's error-prone and time-consuming…)
– Arkku
Apr 8 '10 at...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
...(const char* fn)
{
File_handle f(fn,"rw"); // open fn for reading and writing
// use file through f
}
在一个系统中，每一样资源都需要一个“资源局柄”对象，但我们不必为每一个资源都写一个“finally”语句。在实作的系统中...
In CSS what is the difference between “.” and “#” when declaring a set of styles?
...nd if your conception is simply that "# is used for DIVs" you'd do well to read up on exactly how to use CSS more effectively.
EDIT: Looks like Selectutorial might have gone to the big website in the sky, so try this archive link instead.
...
Decorators with parameters?
... return result
return wrapper
return decorator
Here you can read more on the subject - it's also possible to implement this using callable objects and that is also explained there.
share
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...
Get a list of distinct values in List
...tinctNotes = Notes.DistinctBy(note => note.Author);
Update:
After re-reading your question, Kirk has the correct answer if you're just looking for a distinct set of Authors.
Added sample, several fields in DistinctBy:
res = res.DistinctBy(i => i.Name).DistinctBy(i => i.ProductId).ToLi...