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Finding a branch point with Git?
...he one of the histories be --first-parent, and I am using this method in a script that might sometimes use the same branches on both sides). I found it safer to use diff's if-then-else mode and erase changed/deleted lines from its output instead of counting on having big enough context., by: diff --...
How do exceptions work (behind the scenes) in c++
...is doing, it's a matter of degree. Many that are using C++ (over Java or a scripted language) are often doing so for performance. For them, the abstraction layer should be relatively transparent, so that you have some idea of what's going on in the metal.
– speedplane
...
What is the difference between application server and web server?
...d to serve static content, though most Web Servers have plugins to support scripting languages like Perl, PHP, ASP, JSP etc. through which these servers can generate dynamic HTTP content.
Most of the application servers have Web Server as integral part of them, that means App Server can do whatever...
What is the difference between partitioning and bucketing a table in Hive ?
...of buckets to store the data. This number is defined during table creation scripts.
Pros
Due to equal volumes of data in each partition, joins at Map side will be quicker.
Faster query response like partitioning
Cons
You can define number of buckets during table creation but loading of equal ...
Change navbar color in Twitter Bootstrap
...-color: $bgHighlight; }}}
}
And finally, a little gift
I've just made a script which will allow you to generate your theme:
TWBSColor - Generate your own Bootstrap navbar
[Update]: TWBSColor now generates SCSS/SASS/Less/CSS code.
[Update]: From now, you can use Less as the default language prov...
Get type of all variables
In R, I'd like to retrieve a list of global variables at the end of my script and iterate over them. Here is my code
6 Answ...
What does Ruby have that Python doesn't, and vice versa?
...(): print "goodbye"
func = func2
This is a fundamental feature of modern scripting languages. JavaScript and Lua do this, too. Ruby doesn't treat functions this way; naming a function calls it.
Of course, there are ways to do these things in Ruby, but they're not first-class operations. For ex...
What's the difference between a temp table and table variable in SQL Server?
...36 less bytes than for #temp tables (118 fewer nvarchar characters).
Full script to reproduce (best run on an instance started in single user mode and using sqlcmd mode)
:setvar tablename "@T"
:setvar tablescript "DECLARE @T TABLE"
/*
--Uncomment this section to test a #temp table
:setvar table...
How to change the CHARACTER SET (and COLLATION) throughout a database?
...s views since those will have to altered separately.
I simply used a Perl script to return all these alters as an array and iterated over them, fixed the columns that were too long (generally they were varchar(256) when the data generally only had 20 characters in them so that was an easy fix).
I ...
live output from subprocess command
I'm using a python script as a driver for a hydrodynamics code. When it comes time to run the simulation, I use subprocess.Popen to run the code, collect the output from stdout and stderr into a subprocess.PIPE --- then I can print (and save to a log-file) the output information, and check for ...