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Why is there no Constant feature in Java?
...o cite why some people (not me) may feel a const keyword may not be a good idea. Personally, I'd love more "const" semantics to be introduced to the language in an unambiguous manner.
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Checking for a dirty index or untracked files with Git
...ok like this:
u="$(git ls-files --others)" && test -z "$u"
The idea is the same as the previous command, but it allows unexpected errors from git ls-files to propagate out. In this case a non-zero exit could mean “there are untracked files” or it could mean an error occurred. If you ...
Difference between natural join and inner join
...sual foreign key names are tablename_id. Natural joins are a bad, bad, bad idea.
– Bohemian♦
Aug 13 '16 at 20:12
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omp parallel vs. omp parallel for
... loop counter defined as private in the #pragma omp parallel directive. No idea why it only fails when MPI is invoking the code. I am somewhat sure that each MPI process is running on a different processor of the cluster if that matters. No idea if schedule is causing the problem.
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Is there any NoSQL data store that is ACID compliant?
...rtain
The conversation gets a little more excitable when it comes to the idea of propagation and constraints. Some RDBMS engines provide the ability to enforce constraints (e.g. foreign keys) which may have propagation elements (a la cascade). In simpler terms, one "thing" may have a relationship ...
In C#, how do I calculate someone's age based on a DateTime type birthday?
...Years(-age)) age--;
However, this assumes you are looking for the western idea of the age and not using East Asian reckoning.
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Syntax behind sorted(key=lambda: …)
...: 'amazing lambda')() # func with no args!
Out[5]: 'amazing lambda'
The idea behind the key argument is that it should take in a set of instructions that will essentially point the 'sorted()' function at those list elements which should used to sort by. When it says key=, what it really means is:...
What's a good rate limiting algorithm?
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I like the idea of using a decorator for this purpose. Why do is lastTimeCalled a list? Also, I doubt this'll work when multiple threads are calling the same RateLimited function...
– Stephan202
Ma...
Android: upgrading DB version and adding new table
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Regarding #4: Wouldn't it be a better idea to use the oldVersion argument passed? If any upgrade statements are repeatable, you may end up repeating them on a mostly-up-to-date database. If one of the statements is to truncate a table, that would be very bad.
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How to run a background task in a servlet based web application?
...ervlet. What is the application your are talking about ? (ps : it is a bad idea to delete your comments, especially comments I answered to)
– Twister
Jan 14 '11 at 13:22
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