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Using group by on multiple columns
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Hi Chaitanya, I do not know if this is what you are asking but let me give you just few example. If you have a product table you use aggregate functions this way, below are two scenarios: SELECT AVG(instock) FROM products; This will calculate ...
Is there a way to get the XPath in Google Chrome?
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Does anyone know the keyboard commands for this on ubuntu? crtl-shift-x and command-shift-x don't appear to do anything
– xiatica
Aug 5 '11 at 4:06
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In Clojure how can I convert a String to a number?
... "\\d+") str) (read-string str)))
I think I prefer the last solution.
And now, to your specific question. To parse something that starts with an integer, like 29px:
(read-string (second (re-matches (re-pattern "(\\d+).*") "29px"))) ; => 29
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Access POST values in Symfony2 request object
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This is great, and now is the best answer. $form->getData() didn't exist or wasn't documented when I asked the question.
– Acyra
Nov 6 '12 at 21:27
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How to define static property in TypeScript interface
... there a way to define both static and instance methods or are all methods now static only?
– dcsan
Jul 4 '19 at 12:54
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UIView Hide/Show with animation
...n your app and add #import <QuartzCore/QuartzCore.h> to your header. Now you can do one of the following:
1) set button.layer.shouldRasterize = YES; and then use the alpha animation code that Michail provided in his answer. This will prevent the layers from blending weirdly, but has a slight ...
Is there a git-merge --dry-run option?
...base is the hexadecimal id that merge-base printed in the previous step)
Now suppose that you want to merge the remote master with your local master, but you can use any branches. git merge-tree will execute the merge in memory and print the result to the standard output. Grep for the pattern <...
What is the difference between '/' and '//' when used for division?
...--> 2 Python 2.7
print (4/2) ----> 2.0 Python 3.5
Now if you want to have (in python 2.7) same output as in python 3.5, you can do the following:
Python 2.7.10
from __future__ import division
print (2/3) ----> 0.6666666666666666 #Python 2.7
print (4/2) ----> 2....
Inserting code in this LaTeX document with indentation
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I heard this package is now obsolete!
– xxx---
Jun 15 '17 at 17:08
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INSERT IF NOT EXISTS ELSE UPDATE?
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It's valid if you know all the new value for all the fields. If the user update only, say, the Level, this approach cannot be followed.
– rds
Nov 14 '12 at 15:07
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