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What is the difference between “AS” and “IS” in an Oracle stored procedure?
I see Oracle procedures sometimes written with "AS", and sometimes with "IS" keyword.
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Get value of dynamically chosen class constant in PHP
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How does Haskell printf work?
Haskell's type safety is second to none only to dependently-typed languages. But there is some deep magic going on with Text.Printf that seems rather type-wonky.
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how to use XPath with XDocument?
...s a similar question, but it seems that the solution didn't work out in my case: Weirdness with XDocument, XPath and namespaces
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Showing data values on stacked bar chart in ggplot2
I'd like to show data values on stacked bar chart in ggplot2. Here is my attempted code
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Python OpenCV2 (cv2) wrapper to get image size?
How to get the size of an image in cv2 wrapper in Python OpenCV (numpy). Is there a correct way to do that other than numpy.shape() . How can I get it in these format dimensions: (width, height) list?
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How do I use extern to share variables between source files?
I know that global variables in C sometimes have the extern keyword. What is an extern variable? What is the declaration like? What is its scope?
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Converting a column within pandas dataframe from int to string
I have a dataframe in pandas with mixed int and str data columns. I want to concatenate first the columns within the dataframe. To do that I have to convert an int column to str .
I've tried to do as follows:
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Load Testing with AB … fake failed requests (length)
To do some load testing, for my own curiosity, on my server I ran:
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Rails - controller action name to string
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