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SQL select only rows with max value on a column [duplicate]
...our point, this is why I called it group_identifier, which could be one or more columns. In your case, group_identifier is the combination of name and age
– Adriano Carneiro
Dec 12 '12 at 16:50
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What does a tilde do when it precedes an expression?
... If you profiled your application and found a bottleneck, it could be made more performant by using bitwise tricks (as one possible tool in a much bigger bag).
It's also a (generally) unclear trick to turn indexOf()'s found return value into truthy (while making not found as falsy) and people often...
Pros and cons of Java rules engines [closed]
...in console in the hands of non-technical people is a good thing or not :)
More details in Should I use a Rules Engine?, Why use a Rule Engine?, Some Guidelines For Deciding Whether To Use A Rules Engine and on Google.
Are there any other players?
Other players include JRules, Corticon (JRules...
Converting bool to text in C++
...< std::boolalpha << f << std::endl;
UPDATE:
If you want more than 4 lines of code without any console output, please go to cppreference.com's page talking about std::boolalpha and std::noboolalpha which shows you the console output and explains more about the API.
Additionally u...
Add more than one parameter in Twig path
How to add more than one parameter in Twig path?
Say you have this route :
2 Answers
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How many parameters are too many? [closed]
... A good rule-of-thumb is the number of CPU registers, because anymore and the compiler will be forced to allocate them on the stack.
– Michaelangel007
Mar 31 '16 at 14:10
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Visualizing branch topology in Git
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Common programming mistakes for Clojure developers to avoid [closed]
...s)) i
(recur (dec i) n times))))
When in fact loop would have been more concise and idiomatic for this particular function:
; Elapsed time: 387 msecs
(defn p3 [] {:post [(= % 6857)]}
(loop [i 775147 n 600851475143 times 3]
(if (and (divides? i n) (fast-prime? i times)) i
(recur ...
Interface vs Abstract Class (general OO)
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http://www.gotw.ca/publications/mill18.htm
http://en.wikibooks.org/wiki/More_C%2B%2B_Idioms/Non-Virtual_Interface
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Should I embed images as data/base64 in CSS or HTML
...S sprites) when IE compatibility doesn't matter, and saving the request is more important than cacheability.
It has a number of notable downsides:
Doesn't work at all in IE6 and 7.
Works for resources only up to 32k in size in IE8. This is the limit that applies after base64 encoding. In other...