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Run PostgreSQL queries from the command line
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psql -U usernam>me m> -d mydatabase -c 'SELECT * FROM mytable'
If you're new to postgresql and unfamiliar with using the command line tool psql then there is som>me m> confusing behaviour you should be aware of when you've entered an interactive se...
How to insert a value that contains an apostrophe (single quote)?
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('Joe', 'O''Brien')
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right here
The sam>me m> applies to SELECT queries:
SELECT First, Last FROM Person WHERE Last = 'O''Brien'
The apostrophe, or single quote, is a special character in SQL that specifies the beginning and end of string data. This m>me m>ans that to ...
Python's tim>me m>.clock() vs. tim>me m>.tim>me m>() accuracy?
Which is better to use for timing in Python? tim>me m>.clock() or tim>me m>.tim>me m>()? Which one provides more accuracy?
16 Answers
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How can I get screen resolution in java?
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You can get the screen size with the Toolkit.getScreenSize() m>me m>thod.
Dim>me m>nsion screenSize = Toolkit.getDefaultToolkit().getScreenSize();
double width = screenSize.getWidth();
double height = screenSize.getHeight();
On a multi-monitor configuration you should use this :
GraphicsDe...
How to round an image with Glide library?
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If you haver som>me m> problem please CHECK THE NEXT SOLUTION of Roman Samoylenko that work.
– Pabel
Jun 30 '17 at 8:24
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execute function after complete page load
I am using following code to execute som>me m> statem>me m>nts after page load.
17 Answers
17
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Find the index of a dict within a list, by matching the dict's value
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tom_index = next((index for (index, d) in enum>me m>rate(lst) if d["nam>me m>"] == "Tom"), None)
# 1
If you need to fetch repeatedly from nam>me m>, you should index them by nam>me m> (using a dictionary), this way get operations would be O(1) tim>me m>. An idea:
def build_dict(seq, key):
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How to remove all whitespace from a string?
So " xx yy 11 22 33 " will becom>me m> "xxyy112233" . How can I achieve this?
9 Answers
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Hide text using css
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long titles will have an issue with this m>me m>thod since only the text before word-wrap is indented, and the W3C spec doesn't specify a situation for negative indent so this could have unpredictable results
– Chris Farmiloe
Jan 23...
Execute code when Django starts ONCE only?
...dleware class that I want to execute only once at startup, to initialise som>me m> other arbritary code. I've followed the very nice solution posted by sdolan here , but the "Hello" m>me m>ssage is output to the terminal twice . E.g.
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