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SQL multiple column ordering
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ORDER BY column1 DESC, column2
This sorts everything by column1 (descending) first, and then by column2 (ascending, which is the default) whenever the column1 fields for two or more rows are equal.
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Javascript when to use prototypes
... @29er - in the way i have written this example, you are correct. The order does matter. If i were to keep this example as is, the Car.prototype = { ... } would have to come before calling a new Car() as illustrated in this jsfiddle: jsfiddle.net/mxacA . As for your argument, this would be the...
C programming in Visual Studio
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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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ActiveRecord.find(array_of_ids), preserving order
When you do Something.find(array_of_ids) in Rails, the order of the resulting array does not depend on the order of array_of_ids .
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Easy way to concatenate two byte arrays
...go back and edit the line where you create the result byte array. Also, re-ordering the arrays is simple, unlike using the arraycopy method.
– Wayne Uroda
Aug 27 '12 at 11:38
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What is the difference between partitioning and bucketing a table in Hive ?
...eld is not too high.
Also, you can partition on multiple fields, with an order (year/month/day is a good example), while you can bucket on only one field.
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What's the difference between RANK() and DENSE_RANK() functions in oracle?
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RANK gives you the ranking within your ordered partition. Ties are assigned the same rank, with the next ranking(s) skipped. So, if you have 3 items at rank 2, the next rank listed would be ranked 5.
DENSE_RANK again gives you the ranking within your ordered part...
Should I use JSLint or JSHint JavaScript validation? [closed]
...documentation: says "You can also use ternary evaluations in free space in order to do different operations". developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… @AuthorProxy I'm going for Mozilla and ignoring JSHint. Sorry.
– dewd
Apr 24 '15 at 14:52...
What's the difference between the atomic and nonatomic attributes?
...= userName_;
}
}
Basically, the atomic version has to take a lock in order to guarantee thread safety, and also is bumping the ref count on the object (and the autorelease count to balance it) so that the object is guaranteed to exist for the caller, otherwise there is a potential race conditi...
ActionController::InvalidAuthenticityToken
...ts some headers with more information about the original client request in order to be able to apply various processing tasks and security measures.
More details are available here: https://github.com/rails/rails/issues/22965.
TL;DR: the solution is to add some headers:
upstream myapp {
server ...