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MySQL CONCAT returns NULL if any field contain NULL
...ate_name`,''),'-',COALESCE(`model`,''),'-',COALESCE(`ip`,''),'-',COALESCE(`os_type`,''),'-',COALESCE(`os_version`,'')) AS device_name
FROM devices
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Timeout command on Mac OS X?
Is there an alternative for the timeout command on Mac OSx. The basic requirement is I am able to run a command for a specified amount of time.
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Using Caps Lock as Esc in Mac OS X
How do I make Caps Lock work like Esc in Mac OS X?
14 Answers
14
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How to set or change the default Java (JDK) version on OS X?
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those really are backticks the export line
– David West
Nov 27 '14 at 19:38
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Using python's eval() vs. ast.literal_eval()?
I have a situation with some code where eval() came up as a possible solution. Now I have never had
to use eval() before but, I have come across plenty of information about the potential
danger it can cause. That said, I'm very wary about using it.
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How many GCC optimization levels are there?
... while maintaining fast compilation and a good debugging experience.)
-Os (Optimize for size. -Os enables all -O2 optimizations that do not typically increase code size. It also performs further optimizations
designed to reduce code size.
-Os disables the following optimization flags: -falign-fu...
Redirect stdout pipe of child process in Go
...hing more interesting
cmd := exec.Command("ls", "-l")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Run()
}
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Why does Android use Java? [closed]
...o Java was known in the industry
the speed difference is not an issue for most applications; if it was you should code in low-level language
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How do I find the location of Python module sources?
...swer to indicate that datetime.__file__ points to a .so on Linux & Mac OS X (though on Windows the datetime module object has no file attribute), I'll accept your answer.
– Daryl Spitzer
Nov 6 '08 at 19:06
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How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
... computer set, and the external source port on the router. The latter is chosen by the router, not the hosts. Since, internally, each host has a different IP address, there is no collision.
– Borealid
Apr 27 '14 at 1:39
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