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Preferred way to create a Scala list
...nstruct your list depends on the algorithm you'll use the list for and the order in which you get the elements to create it.
For instance, if you get the elements in the opposite order of when they are going to be used, then you can just use a List and do prepends. Whether you'll do so with a tail-...
What is the real overhead of try/catch in C#?
...be aware that a whole bunch of runtime/reflection related stuff happens in order to populate the members of the exception class such as the stack trace object and the various type members etc.
I believe that this is one of the reasons why the general advice if you are going to rethrow the exception...
Which are more performant, CTE or temporary tables?
...Example 2
WITH CTE2
AS (SELECT *,
ROW_NUMBER() OVER (ORDER BY A) AS RN
FROM T
WHERE B % 100000 = 0)
SELECT *
FROM CTE2 T1
CROSS APPLY (SELECT TOP (1) *
FROM CTE2 T2
WHERE T2.A > T1.A
...
How to create Temp table with SELECT * INTO tempTable FROM CTE Query
...epart(dw, PlannedDate) AS CHAR(1)) + ',%'
OR EventEnumDays IS NULL
ORDER BY EventID,
PlannedDate
OPTION (maxrecursion 0)
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How can I shuffle the lines of a text file on the Unix command line or in a shell script?
...e input lines / keys is it a true shuffle. While it's true that the output order is determined by hash values, the randomness comes from choosing a random hash function - see manual.]
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What are the differences between B trees and B+ trees?
... fit on a page of memory. Therefore, it will require fewer cache misses in order to access data that is on a leaf node.
The leaf nodes of B+ trees are linked, so doing a full scan of all objects in a tree requires just one linear pass through all the leaf nodes. A B tree, on the other hand, would re...
Multiple arguments vs. options object
...plicated. If one of them relies on the others, so that they have a certain order (e.g. the fourth one needs the third one), you still should use multiple arguments. Nearly all native EcmaScript and DOM-methods work like this. A good example is the open method of XMLHTTPrequests, where the last 3 arg...
What is a Memory Heap?
...ack? A stack only allows to take one variable at a time in a very specific order. What if I need a local variable from somewhere lower on the stack?
– CodyBugstein
Jul 2 '15 at 21:07
...
Static Classes In Java
...e implicitly static in that you don't need a reference to anything else in order to construct one. Personally I find the static/non-static terminology a bit odd for nested classes anyway... I think it would be simpler to talk about what the behaviour is.
– Jon Skeet
...
Python Sets vs Lists
In Python, which data structure is more efficient/speedy? Assuming that order is not important to me and I would be checking for duplicates anyway, is a Python set slower than a Python list?
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