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Group by month and year in MySQL

Given a table with a timestamp on each row, how would you format the query to fit into this specific json object format. 12...
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How to increment a datetime by one day?

How to increment the day of a datetime? 7 Answers 7 ...
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Why should we typedef a struct so often in C?

I have seen many programs consisting of structures like the one below 15 Answers 15 ...
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Mod in Java produces negative numbers [duplicate]

When I calculate int i = -1 % 2 I get -1 in Java. In Python, I get 1 as the result of -1 % 2 . What do I have to do to get the same behavior in Java with the modulo function? ...
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Using vagrant to run virtual machines with desktop environment

My company's development environment is based on virtual machines, running on VirtualBox. We would like to move one step further, and use the capabilities of Vagrant to have the description of the machine in a text file and then be able to "raise" that machine based on that text file. Combined to pu...
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How to join two generators in Python?

...keep in mind that the return value of itertools.chain() does not return a types.GeneratorType instance. Just in case the exact type is crucial. – Riga Sep 16 '19 at 13:45 ...
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What is the most efficient way of finding all the factors of a number in Python?

Can someone explain to me an efficient way of finding all the factors of a number in Python (2.7)? 22 Answers ...
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How to draw polygons on an HTML5 canvas?

I need to know how to draw polygons on a canvas. Without using jQuery or anything like that. 9 Answers ...
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How do I draw a grid onto a plot in Python?

I just finished writing code to make a plot using pylab in Python and now I would like to superimpose a grid of 10x10 onto the scatter plot. How do I do that? ...
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Is there any boolean type in Oracle databases?

Is there any Boolean type in Oracle databases, similar to the BIT datatype in Ms SQL Server? 11 Answers ...