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Parallel foreach with asynchronous lambda
I would like to handle a collection in parallel, but I'm having trouble implementing it and I'm therefore hoping for some help.
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Getting indices of True values in a boolean list
...ode where I'm supposed to create a switchboard. I want to return a list of all the switches that are on. Here "on" will equal True and "off" equal False . So now I just want to return a list of all the True values and their position. This is all I have but it only return the position of the fir...
Salting Your Password: Best Practices?
...d you store. (This is quite a common misunderstanding.)
Use a cryptographically secure random number generator.
Choose a long enough salt. Think about the birthday problem.
There's an excellent answer by Dave Sherohman to another question why you should use randomly generated salts instead of a us...
Sql Server string to date conversion
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@matao so please enlighten us, how does Oracle magically determine whether a user who typed 9/6/12 meant September 6th 2012, June 9th 2012, December 6th 2009, or something else?
– Aaron Bertrand
Dec 24 '12 at 16:09
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How to find the size of an array in postgresql
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cardinality returns the number of all the elements in a single or multidimensional array. So select cardinality(ARRAY[[1,2], [3,4]]); would return 4, whereas select array_length(ARRAY[[1,2], [3,4]], 1) would return 2. If you're counting the first dimension, a...
How can I see the current value of my $PATH variable on OS X?
...to display the PATH variable or you can just execute set or env to display all of your environment variables.
By typing $PATH you tried to run your PATH variable contents as a command name.
Bash displayed the contents of your path any way. Based on your output the following directories will be se...
How to run eclipse in clean mode? what happens if we do so?
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How to use it:
Edit the eclipse.ini file located in your Eclipse install directory and insert -clean as the first line.
Or edit the shortcut you use to start Eclipse and add -clean as the first argument.
Or create a batch or shell script that calls the Eclipse executable with the -clean argu...
What is “incremental linking”?
I've looked at Microsoft's MSDN and all around the web, but I still haven't been able to get a really good idea of what it is.
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Capture Stored Procedure print output in .NET
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Are you catching all messages produced within sql server with that event ? Is it possible that this event will also catch some other messages, not produced by that stored procedure ?
– FrenkyB
Mar 18 '15...
Get list from pandas DataFrame column headers
...input so I won't know how many columns there will be or what they will be called.
19 Answers
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