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Java variable number or arguments for a method
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edited Oct 20 '17 at 1:43
ErikE
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postgresql COUNT(DISTINCT …) very slow
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holy queries batman! This sped up my postgres count distinct from 190s to 4.5 whoa!
– rogerdpack
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Get the week start date and week end date from week number
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answered Aug 12 '09 at 16:14
Robin DayRobin Day
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Bash Script: count unique lines in file
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You can use the uniq command to get counts of sorted repeated lines:
sort ips.txt | uniq -c
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Dictionaries and default values
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edited Jan 23 '19 at 5:30
Solomon Ucko
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answere...
Which MySQL data type to use for storing boolean values
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For MySQL 5.0.3 and higher, you can use BIT. The manual says:
As of MySQL 5.0.3, the BIT data type is used to store bit-field
values. A type of BIT(M) enables storage of M-bit values. M can range
from 1 to 64.
Otherwise, according to t...
How to convert ASCII code (0-255) to its corresponding character?
How can I convert, in Java, the ASCII code (which is an integer from [0, 255] range) to its corresponding ASCII character?
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How to calculate date difference in JavaScript?
...icktoofay
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Are default enum values in C the same for all compilers?
...ng an enum as shown below, do all C compilers set the default values as x=0 , y=1 , and z=2 on both Linux and Windows systems?
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Get decimal portion of a number with JavaScript
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Use 1, not 2.
js> 2.3 % 1
0.2999999999999998
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