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How to use GROUP_CONCAT in a CONCAT in MySQL
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group by id;
You can see it implemented here : Sql Fiddle Demo. Exactly what you need.
Update
Splitting in two steps. First we get a table having all values(comma separated) against a unique[Name,id]. Then from obtained table we get all names and values as a single value against each unique id
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Difference between path.normalize and path.resolve in Node.js
What is the difference (if any) between path.normalize(your_path) and path.resolve(your_path) ?
2 Answers
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Boolean method naming readability
...ces, so you will assign it to variable. Since method is called userExists, what name of variable you will declare? userExists is good for variables, not methods. As @Oskar wrote - it sound like statement, not a question.
– Jarosław Wlazło
Feb 13 '19 at 22:25
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Java Reflection Performance
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This is probably a useless benchmark. Depending on what doSomething does. If it does nothing with visible side effect, then your benchmark runs only dead code.
– nes1983
May 26 '12 at 10:13
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What good are SQL Server schemas?
...ed by schemas in 2005+. Yes, I know the basic definition of a schema, but what are they really used for in a typical SQL Server deployment?
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How to reduce iOS AVPlayer start delay
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What about the audio portion of the video? I need video and audio to be synchronized.
– Bernt Habermeier
Jul 6 '13 at 0:35
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What happens if I define a 0-size array in C/C++?
Just curious, what actually happens if I define a zero-length array int array[0]; in code? GCC doesn't complain at all.
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Centering a view in its superview using Visual Format Language
...0.f];
One would think that you would simply be able to do this (which is what I initially thought and tried when I saw this question):
[NSLayoutConstraint constraintsWithVisualFormat:@"|-(>=20)-[view(==200)]-(>=20)-|"
options: NSLayoutFormatAlignAllCenterX |...
How to Rotate a UIImage 90 degrees?
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What about something like:
static inline double radians (double degrees) {return degrees * M_PI/180;}
UIImage* rotate(UIImage* src, UIImageOrientation orientation)
{
UIGraphicsBeginImageContext(src.size);
CGContextR...
How to set up tmux so that it starts up with specified windows opened?
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What is the purpose of the \:? I've seen scripts work with and without this.
– Kevin McDonough
Apr 14 '19 at 16:09
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