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How to run multiple shells on Emacs
...macs using M-x shell. I would like to have multiple shell windows in the same time, but typing M-x shell a second time just opens me the same shell window.
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Finding duplicate values in a SQL table
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SELECT
name, email, COUNT(*)
FROM
users
GROUP BY
name, email
HAVING
COUNT(*) > 1
Simply group on both of the columns.
Note: the older ANSI standard is to have all non-aggregated columns in the GROUP BY but this has ...
How to turn off INFO logging in Spark?
...g4j.rootCategory=WARN, console
Save and restart your shell. It works for me for Spark 1.1.0 and Spark 1.5.1 on OS X.
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Are there legitimate uses for JavaScript's “with” statement?
Alan Storm's comments in response to my answer regarding the with statement got me thinking. I've seldom found a reason to use this particular language feature, and had never given much thought to how it might cause trouble. Now, I'm curious as to how I might make effective use of with , while a...
How do I get current date/time on the Windows command line in a suitable format for usage in a file/
... /t') do (set mydate=%%c-%%a-%%b)
For /f "tokens=1-2 delims=/:" %%a in ('time /t') do (set mytime=%%a%%b)
echo %mydate%_%mytime%
If you prefer the time in 24 hour/military format, you can replace the second FOR line with this:
For /f "tokens=1-2 delims=/:" %%a in ("%TIME%") do (set mytime=%%a%%b)...
What is an Endpoint?
...ing about OAuth! Post more questions if you run into any difficulties implementing an OAuth client.
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Can't install nuget package because of “Failed to initialize the PowerShell host”
...this error when upgrading Nuget packages. None of the fixes that I have come across work. I am using Visual Studio 2013.
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How to turn on front flash light programmatically in Android?
I want to turn on front flash light (not with camera preview) programmatically in Android. I googled for it but the help i found referred me to this page
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Is there an SQLite equivalent to MySQL's DESCRIBE [table]?
...asic information (for example, it doesn't show if a column is a field of some sort or not). Does SQLite have a way to do this?
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How to create a .NET DateTime from ISO 8601 format
I've found how to turn a DateTime into an ISO 8601 format, but nothing on how to do the reverse in C#.
7 Answers
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