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What's wrong with nullable columns in composite primary keys?
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In order for a foreign key to work the refered must be unique (ie. all values must be distinct). Which means that it could have a single null value. All the null values could then refer to that single null if the REFERENCES woul...
What are the best Haskell libraries to operationalize a program? [closed]
...ram into production, there are several things I need that program to do in order to consider it "operationalized" – that is, running and maintainable in a measurable and verifiable way by both engineers and operations staff. For my purposes, an operationalized program must:
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Difference between jar and war in Java
...here too)) .jsp files images, files etc.
All WAR content that is there in order to create a self-contained module.
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How to select bottom most rows?
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(
SELECT TOP 200
columns
FROM
My_Table
ORDER BY
a_column DESC
) SQ
ORDER BY
a_column ASC
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Apache Kafka vs Apache Storm
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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How to embed a text file in a .NET assembly?
...y file you have added and change the "Build Type" to Embedded Resource.
In order to access the resource:
a. Got the current assembly using the function: GetExecutingAssembly()
b. The resource that I added was a text file so I read it into a stream using GetManifestResourceStream(fileName). The way...
What is the quickest way to HTTP GET in Python?
... @JoeBlow remember that you must import the external libraries in order to use them
– MikeVelazco
Feb 8 '17 at 22:34
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How does C compute sin() and other math functions?
...or precision = 7.33) a number N = 4 and a polynomial number 3502. N is the order of the polynomial (so it's p4.x^4 + p3.x^3 + p2.x^2 + p1.x + p0), because N=4. Then you look up the actual value of the p4,p3,p2,p1,p0 values in the back of the book under 3502 (they'll be in floating point). Then you i...
How can I change the file type association of an existing file in WebStorm?
...at you should click on the matching icon you accidentally mapped it to, in order to edit the association. I did every thing up until that step and was lost for a minute. Thank you!
– mrClean
Jan 19 '17 at 21:57
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Why is it said that “HTTP is a stateless protocol”?
...e. If we define statelessness as "not necessarily needing to have state in order to operate" (see dimo414's answer below listing options for state within HTTP cited from Wikipedia), and if we view each protocol strictly by itself and not based upon the layers below it, then yes, I can agree that HTT...