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PHP Session Fixation / Hijacking
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Why is the order in dictionaries and sets arbitrary?
...tand how looping over a dictionary or set in python is done by 'arbitrary' order.
6 Answers
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How to force a WPF binding to refresh?
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Select first row in each GROUP BY group?
...OW_NUMBER() OVER(PARTITION BY p.customer
ORDER BY p.total DESC) AS rk
FROM PURCHASES p)
SELECT s.*
FROM summary s
WHERE s.rk = 1
Supported by any database:
But you need to add logic to break ties:
SELECT MIN(x.id), -- change to MAX if you want the hi...
What is a higher kinded type in Scala?
...morphic instantiations).
In the context of abstraction/polymorphism, first-order refers to "single use" of abstraction: you abstract over a type once, but that type itself cannot abstract over anything. Java 5 generics are first-order.
The first-order interpretation of the above characterizations of...
How do I export UIImage array as a movie?
...e session:
// This is important to be done exactly in this order
[writerInput markAsFinished];
// WARNING: finishWriting in the solution above is deprecated.
// You now need to give a completion handler.
[videoWriter fi...
Facebook share button and custom text [closed]
...escription + Picture automatically from the page that you are sharing.
In order to "help" facebook API find those things you can put the following things in the header of the page that you are sharing:
<meta property="og:title" content="title" />
<meta property="og:description" content=...
Setting the zoom level for a MKMapView
... very simple and does the trick. Use MKCoordinateRegionMakeWithDistance in order to set the distance in meters vertically and horizontally to get the desired zoom. And then of course when you update your location you'll get the right coordinates, or you can specify it directly in the CLLocationCoord...
How to find third or nth maximum salary from salary table?
...(
SELECT EmpID, EmpName, EmpSalary,
RN = ROW_NUMBER() OVER (ORDER BY EmpSalary DESC)
FROM dbo.Salary
)
SELECT EmpID, EmpName, EmpSalary
FROM CTE
WHERE RN = @NthRow
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improv...
Converting a list to a set changes element order
Recently I noticed that when I am converting a list to set the order of elements is changed and is sorted by character.
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