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how to generate migration to make references polymorphic
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Dorian
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answered Apr 4 '11 at 4:38
Michelle TilleyMichelle Tilley
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How to extract text from a string using sed?
...currence.)
– tripleee
Dec 12 '13 at 11:53
See also stackoverflow.com/a/48898886/874188 for how to replace various othe...
Change old commit message on Git
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Community♦
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answered Dec 10 '09 at 22:37
VonCVonC
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Why is creating a Thread said to be expensive?
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answered Mar 30 '11 at 7:16
Stephen CStephen C
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How to drop into REPL (Read, Eval, Print, Loop) from Python code
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Here's how you should do it (IPython > v0.11):
import IPython
IPython.embed()
For IPython <= v0.11:
from IPython.Shell import IPShellEmbed
ipshell = IPShellEmbed()
ipshell() # this call anywhere in your program will start IPython
You should use IPython, th...
SQL Server - When to use Clustered vs non-Clustered Index?
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118
I just want to put in a word of warning: please very carefully pick your clustered index! Ever...
Semicolons superfluous at the end of a line in shell scripts?
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answered Sep 21 '11 at 21:45
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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Should I index a bit field in SQL Server?
...ficient?
– ingredient_15939
Nov 30 '11 at 2:30
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show 1 more comment
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Ruby, Difference between exec, system and %x() or Backticks
...invoked process and the exit status.
>> system("date")
Wed Sep 4 22:11:02 CEST 2013
=> true
>> $?
=> #<Process::Status: pid 15470 exit 0>
Backticks
Backticks (``) call a system program and return its output. As opposed to the first approach, the command is not provided th...
How can I set the Sender's address in Jenkins?
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FrisoFriso
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