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Retrieving the last record in each group - MySQL
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MySQL 8.0 now supports windowing functions, like almost all popular SQL implementations. With this standard syntax, we can write greatest-n-per-group queries:
WITH ranked_messages AS (
SELECT m.*, ROW_NUMBER() OVER (PARTITION BY nam...
How to convert an OrderedDict into a regular dict in python3
...= OrderedDict([('method', 'constant'), ('data', '1.225')])
d2 = dict(d) # Now a normal dict
Now to check this:
>>> type(d2)
<class 'dict'>
>>> isinstance(d2, OrderedDict)
False
>>> isinstance(d2, dict)
True
NOTE: This also works, and gives same result -
>>&g...
android splash screen sizes for ldpi,mdpi, hdpi, xhdpi displays ? - eg : 1024X768 pixels for ldpi
... reason you should increase +2 pixel your canvas size's width and height ( now your image sizes are 722 x 1282 ).
I've left the blank 1 pixel gap at every side as directed the below.
Changing the canvas size by using Photoshop:
- Open a splash screen png file in Photoshop
- Click onto the lock ...
Is there a repo where you can download android virtual devices? [closed]
Does anyone know, if vendors provide or if there is a site where one could download AVD profiles for existing android devices on the market so you can run your apps in the emulator and basically see how they will run on said devices?
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Is Javascript compiled or an interpreted language? [closed]
...ng like an interpreter, and most major JS engines feature JIT compilers by now. Thus, saying that "JavaScript is interpreted" is obviously wrong (or maybe your definition of interpreter/compiler is).
– user395760
Mar 10 '12 at 8:26
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What is the inverse function of zip in python? [duplicate]
I've used the zip() function from the numpy library to sort tuples and now I have a list containing all the tuples. I had since modified that list and now I would like to restore the tuples so I can use my data. How can I do this?
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PermGen elimination in JDK 8
... get a java.lang.OutOfMemoryError: PermGen error.
The JDK 8 HotSpot JVM is now using native memory for the representation of class metadata and is called Metaspace. Read More>>
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How to tell if UIViewController's view is visible
I have a tab bar application, with many views. Is there a way to know if a particular UIViewController is currently visible from within the UIViewController ? (looking for a property)
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in Ipython notebook / Jupyter, Pandas is not displaying the graph I try to plot
... The recommended way to enable inline plotting in the IPython Notebook is now to run:
%matplotlib inline
import matplotlib.pyplot as plt
See this post from the ipython-dev mailing list for more details.
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How to validate phone numbers using regex
...ve just the "number". Doing this solves 2 problems - testing the result is now easy and you can now ensure that values rendered back out for display can all be formatted consistently. The first comment on this answer about the "Complicator's Gloves" is a good read... sometimes the answer to a probl...