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How do you debug MySQL stored procedures?
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This doesn't seem to work for FUNCTIONS and I have no idea why. It always gives "Error Code: 1415. Not allowed to return a result set from a function". Is there any recourse?
– Patrick M
Jul ...
How to run Unix shell script from Java code?
... tried it myself, but try executing the shell script directly, and if that doesn't work, execute the shell itself, passing the script in as a command line parameter).
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How to generate all permutations of a list?
..., 4),
(3, 1), (3, 2), (3, 4),
(4, 1), (4, 2), (4, 3)]
Combination (order does NOT matter):
print list(itertools.combinations('123', 2))
[('1', '2'), ('1', '3'), ('2', '3')]
Cartesian product (with several iterables):
print list(itertools.product([1,2,3], [4,5,6]))
[(1, 4), (1, 5), (1, 6),
(2, ...
How to version control a record in a database
... the audit table updating with database triggers if your data access layer doesn't directly support it. Also, it's not hard to build a code generator to make the triggers that uses introspection from the system data dictionary.
– ConcernedOfTunbridgeWells
Nov ...
Format date and time in a Windows batch script
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What does %time:~0,2% do where is some documentation on the :~,% structure?
– user1605665
Nov 11 '14 at 4:43
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What is the meaning of #XXX in code comments?
...se. #TODO and #FIXME are two other fix markers vim highlights but what does #XXX mean?
10 Answers
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How can I open a URL in Android's web browser from my application?
... what the difference was, but we had an issue with 2.3 that this solved. Does anyone know what the difference in the implementation is?
– Innova
Dec 5 '13 at 21:29
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Is there any way to prevent input type=“number” getting negative values?
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This doesn't work, the user can still enter a negative number manually.
– Altef four
Nov 21 '17 at 20:04
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Animated loading image in picasso
... while the image is loading, like I see in most professional apps. Picasso doesn't seem to support this, only static image drawables. Is there a way to get it working with Picasso or do I have to do something different?
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How do I calculate the date six months from the current date using the datetime Python module?
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I'm curious: does anyone know why this isn't included by default? Timedelta seems packaged with datetime by default. I actually assumed I could pass "months" into timedelta.
– dTanMan
Nov 12 '19 at 3...