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SQL Server Insert if not exists
...S (@_DE, @_ASSUNTO, @_DATA)
END
END
Updated : (thanks to @Marc Durdin for pointing)
Note that under high load, this will still sometimes fail, because a second connection can pass the IF NOT EXISTS test before the first connection executes the INSERT, i.e. a race condition. See stackoverflow.c...
python setup.py uninstall
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Or if you're running Windows, use Powershell:
Get-Content files.txt | ForEach-Object {Remove-Item $_ -Recurse -Force}
Then delete also the containing directory, e.g. /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/my_module-0.1.egg/ on macOS. It has no files, but...
How to change legend title in ggplot
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p$labels$fill didn't work for me. With ggplot2_2.1.0 I use p$labels$colour <- "New legend title"
– ClementWalter
Jun 28 '16 at 13:19
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Listen for key press in .NET console app
...() is a blocking function, it stops the execution of the program and waits for a key press, but thanks to checking Console.KeyAvailable first, the while loop is not blocked, but running until the Esc is pressed.
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Is null reference possible?
... operations are described
in this International Standard as
undefined (for example, the effect of
dereferencing the null pointer)
As Johannes says in a deleted answer, there's some doubt whether "dereferencing a null pointer" should be categorically stated to be undefined behavior. But this ...
possible EventEmitter memory leak detected
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I'd like to point out here that that warning is there for a reason and there's a good chance the right fix is not increasing the limit but figuring out why you're adding so many listeners to the same event. Only increase the limit if you know why so many listeners are being adde...
javac not working in windows command prompt
...u can also tell which executable (if any) is being used with the command:
for %i in (javac.exe) do @echo %~$PATH:i
This is a neat trick similar to the which and/or whence commands in some UNIX-type operating systems.
shar...
Regex - Should hyphens be escaped? [duplicate]
Hyphen is a special character in regex, for instance, to select a range, I could do something like:
3 Answers
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Using numpy to build an array of all combinations of two arrays
...ameters space of a 6 parameter function to study it's numerical behavior before trying to do anything complex with it so I'm searching for a efficient way to do this.
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How to schedule a function to run every hour on Flask?
...that two of these schedulers will be launched when Flask is in debug mode. For more information, check out this question.
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