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Difference between a theta join, equijoin and natural join
... created by various vendors such as Microsoft's SQL Server, Oracle's MySQL etc. ) don't even bother supporting this, it is just bad practice (or purposely chose not to implement it). Imagine that a developer comes and changes the name of the second column in Product from Price to Cost. Then all the ...
Reading output of a command into an array in Bash
...one line per element, there are essentially 3 ways:
With Bash≥4 use mapfile—it's the most efficient:
mapfile -t my_array < <( my_command )
Otherwise, a loop reading the output (slower, but safe):
my_array=()
while IFS= read -r line; do
my_array+=( "$line" )
done < <( my_comm...
std::back_inserter for a std::set?
...proposal to have a "single argument inserter iterator".
https://isocpp.org/files/papers/p0471r0.html . I couldn't find if it the proposal advanced. I think it makes sense.
For now you can have this behavior defining the maker function:
template<class Container>
auto sinserter(Container& ...
how to generate migration to make references polymorphic
...lves if you need them. You can just add indexes as normal in the migration file to imageable_type and/or imageable_id as necessary.
– Michelle Tilley
Apr 20 '14 at 18:23
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Is SonarQube Replacement for Checkstyle, PMD, FindBugs?
...anything easily.
The statistics it offers are very detailed (lines of code etc).
And it even offers great support for test coverage etc :)
Here you can take a good look:
http://nemo.sonarsource.org/
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What is the difference between gmake and make?
...s pmake(1). This can lead to disastrous results when trying to write a Makefile that can be used by both GNU Make and pmake (contrived harmless example, imagine: gcc -o $@ $< = no input sources with gmake because $< evaluates to an empty string. Worse combinations exist that can result in gcc ...
Get day of week in SQL Server 2005/2008
... date 01/01/2009, I want to find out what day it was e.g. Monday, Tuesday, etc...
10 Answers
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grunt: command not found when running from terminal
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can i add this using sudo nano /etc/paths ?
– user686483
Jun 1 '13 at 4:36
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Is div inside list allowed? [duplicate]
...ly on many "big" websites like Smashing Magazine , Web Designer Wall ... etc.
6 Answers
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Listing and deleting Git commits that are under no branch (dangling?)
...re is the gist:
git gcremoves unreachable objects (commits, trees, blobs (files)). An object is unreachable if it isn't part of the history of some branch. Actually it is a bit more complicated:
git gc does some other things but they are not relevant here and not dangerous.
Unreachable objects th...