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CHECK constraint in MySQL is not working
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MySQL 8.0.16 is the first version that supports CHECK constraints.
Read https://dev.mysql.com/doc/refman/8.0/en/create-table-check-constraints.html
If you use MySQL 8.0.15 or earlier, the MySQL Reference Manual says:
The CHECK...
How to get a variable value if variable name is stored as string?
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answered Dec 17 '09 at 12:09
Phil RossPhil Ross
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How do you easily horizontally center a using CSS? [duplicate]
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806
In the case of a non-fixed width div (i.e. you don't know how much space the div will occupy).
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How Python web frameworks, WSGI and CGI fit together
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+250
How WSGI, CGI, and the frameworks are all connected?
Apache listens on port 80. It gets an HTTP request. It parses the request to f...
Numpy array dimensions
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answered Jun 17 '10 at 12:59
Felix KlingFelix Kling
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setuptools vs. distutils: why is distutils still a thing?
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+50
Have a look at this SO question. It explains all the packaging methods very well, and might help answer your question to some extent: ...
The written versions of the logical operators
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answered Mar 4 '10 at 2:11
GManNickGGManNickG
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Get HTML5 localStorage keys
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in ES2017 you can use:
Object.entries(localStorage)
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What is the optimal Jewish toenail cutting algorithm?
...e. Luckily, humans only have five toes per foot*, so there are only 5! = 120 unrestricted sequences.
Python example:
#seq is only valid when consecutive elements in the list differ by at least two.
def isValid(seq):
for i in range(len(seq)-1):
a = seq[i]
b = seq[i+1]
i...
What do 'statically linked' and 'dynamically linked' mean?
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450
There are (in most cases, discounting interpreted code) two stages in getting from source code (...