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SQL: How to get the count of each distinct value in a column?
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318
SELECT
category,
COUNT(*) AS `num`
FROM
posts
GROUP BY
category
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UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte
...n as follows (if a is the string with non-ascii character):
a.encode('utf-8').strip()
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How does a Linux/Unix Bash script know its own PID?
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68
use $BASHPID or $$
See the manual for more information, including differences between the two.
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How do I simply create a patch from my latest git commit?
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UselessUseless
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How to convert 1 to true or 0 to false upon model fetch
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edited May 17 at 8:39
answered May 1 '13 at 6:03
V...
How can I expose more than 1 port with Docker?
... Seymour
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answered Dec 31 '13 at 3:57
Tania AngTania Ang
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Reliable timer in a console application
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Kolappan N
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answered Aug 1 '08 at 12:56
huseyinthuseyint
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What do the crossed style properties in Google Chrome devtools mean?
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answered Nov 6 '16 at 8:49
sanjihansanjihan
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Asserting successive calls to a mock method
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188
assert_has_calls is another approach to this problem.
From the docs:
assert_has_calls (cal...
What are the most useful Intellij IDEA keyboard shortcuts? [closed]
...n. This expression may even be incomplete or contain errors. Since version 8, IDEA intelligently selects a likely expression when no text is selected:
Ctrl+Alt+V
Go to Class, to quickly open any class in the editor:
Ctrl+N
To open any file, not just classes:
Ctrl+Shift+N
Comment/Uncomment current...