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PostgreSQL: Difference between text and varchar (character varying)
...h array).
Check this article from Depesz: http://www.depesz.com/index.php/2010/03/02/charx-vs-varcharx-vs-varchar-vs-text/
A couple of highlights:
To sum it all up:
char(n) – takes too much space when dealing with values shorter than n (pads them to n), and can lead to subtle errors ...
Applying function with multiple arguments to create a new pandas column
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>>> import numpy as np
>>> df = pd.DataFrame({"A": [10,20,30], "B": [20, 30, 10]})
>>> df['new_column'] = np.multiply(df['A'], df['B'])
>>> df
A B new_column
0 10 20 200
1 20 30 600
2 30 10 300
or vectorize arbitrary functi...
How to remove item from list in C#?
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answered Apr 4 '12 at 20:47
Wouter de KortWouter de Kort
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Determining if a variable is within range?
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if i.between?(1, 10)
do thing 1
elsif i.between?(11,20)
do thing 2
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Running a cron every 30 seconds
...on to
# see what happens when the payload exceeds 30 seconds.
((maxtime = 20))
while [[ "$(date +%S)" != "00" ]]; do true; done
while true; do
# Start a background timer BEFORE the payload runs.
sleep 30 &
# Execute the payload, some random duration up to the limit.
# Extra b...
Is there any Rails function to check if a partial exists?
...rce apidock)
– maček
Dec 11 '12 at 20:47
1
If the partial is in the same folder as the current v...
How do I break out of nested loops in Java?
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answered May 20 '09 at 9:11
Jon SkeetJon Skeet
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C++ Best way to get integer division and remainder
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answered Aug 15 '11 at 20:23
cnicutarcnicutar
160k2121 gold badges306306 silver badges343343 bronze badges
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Remove insignificant trailing zeros from a number?
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edited Aug 31 '10 at 20:54
answered Aug 31 '10 at 20:47
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How to retrieve GET parameters from javascript? [duplicate]
...s...
– compile-fan
Mar 27 '11 at 10:20
1
It will return all of the get query regardless of the si...