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MySQL/SQL: Group by date only on a Datetime column
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Cast the datetime to a date, then GROUP BY using this syntax:
SELECT SUM(foo), DATE(mydate) FROM a_table GROUP BY DATE(a_table.mydate);
Or you can GROUP BY the alias as @orlandu63 suggested:
SELECT SUM(foo), DATE(mydate) DateOnly FROM a_table GROUP BY DateOnl...
What are the correct link options to use std::thread in GCC under linux?
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I think on Linux pthread is used to implement std::thread so you need to specify the -pthread compiler option.
As this is a linking option, this compiler option need to be AFTER the source files:
$ g++ -std=c++0x test.cpp -pthread
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How does a Linux/Unix Bash script know its own PID?
I have a script in Bash called Script.sh , and it needs to know its own PID (i.e. I need to get PID inside the Script.sh )
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How to sort an array of hashes in ruby
I have an array, each of whose elements is a hash with three key/value pairs:
5 Answers
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What are the most useful Intellij IDEA keyboard shortcuts? [closed]
I did a bit of googling hoping to find a post on IDEA shortcuts similar to Jeff's post on Visual Studio shortcuts ( Visual Studio .NET 2003 and 2005 Keyboard Shortcuts ), but didn't really spot anything that helped. Hopefully the answers to this question will fill the void.
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Absolute positioning ignoring padding of parent
How do you make an absolute positioned element honor the padding of its parent? I want an inner div to stretch across the width of its parent and to be positioned at the bottom of that parent, basically a footer. But the child has to honor the padding of the parent and it's not doing that. The child...
Is there a better alternative than this to 'switch on type'?
Seeing as C# can't switch on a Type (which I gather wasn't added as a special case because is relationships mean that more than one distinct case might apply), is there a better way to simulate switching on type other than this?
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Call ASP.NET function from JavaScript?
I'm writing a web page in ASP.NET. I have some JavaScript code, and I have a submit button with a click event.
20 Answers
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What's Up with Logging in Java? [closed]
Why one would use one of the following packages instead of the other?
8 Answers
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Elegant Python function to convert CamelCase to snake_case?
Example:
30 Answers
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