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SQL Server equivalent to MySQL enum data type?
... then you'll end-up adding lots of tables to your database. Not to mention extra IO reads due to FK constraint-checking when inserting/deleting data, whereas a CHECK CONSTRAINT is much faster and doesn't cause database object spam.
– Dai
Sep 18 at 7:23
...
What is the difference between RDF and OWL? [closed]
...edicate. The object is either another URI or a literal such as a number or string. Literals can have a type (which is also a URI), and they can also have a language. Yes, this means triples can have up to 5 bits of data!
For example a triple might describe the fact that Charles is Harrys father.
&...
C# Events and Thread Safety
...ith every event - aka boilerplate code!
public event Action<thisClass, string> Some;
protected virtual void DoSomeEvent(string someValue)
{
var e = Some; // avoid race condition here!
if(null != e) // avoid null condition here!
e(this, someValue);
}
2 - the race condition issue) ...
Rolling median algorithm in C
...he first partition.
public class Solution {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
Runnin
In Python, what happens when you import inside of a function? [duplicate]
...me is expensive. Try running an empty script vs one containing just import string,itertools,fractions,heapq,re,array,bisect,collections,math,os. The first takes an average of 180 ms, and the second 230 ms. So it's not microseconds for starters. It's tens of milliseconds (maybe a disc access happens?...
Get MIME type from filename extension
...ing.GetMimeMapping method, that is part of the BCL in .NET Framework 4.5:
string mimeType = MimeMapping.GetMimeMapping(fileName);
If you need to add custom mappings you probably can use reflection to add mappings to the BCL MimeMapping class, it uses a custom dictionary that exposes this method, ...
Why Collections.sort uses merge sort instead of quicksort?
...ast stable sort that guarantees O(n log n)
performance and requires O(n) extra space. In its day (it was written
in 1997 by Joshua Bloch), it was a fine choice, but today but we can
do much better.
Since 2003, Python's list sort has used an algorithm known as timsort
(after Tim Peters,...
Handlebars.js Else If
...ow.com/questions/15008564/… So, instead of #if _is_friend, you can use a string with a very simple helper (in their answer); #if friend_type "is_friend" and #if friend_type "is_not_friend_yet"
– Dylan Reich
Nov 29 '14 at 4:57
...
What is the use of the pipe symbol in YAML?
...
Also look at in-yaml-how-do-i-break-a-string-over-multiple-lines
– Oliver
Apr 12 '18 at 13:18
...
Declaring a custom android UI element using XML
...xtColor"/>
<attr name="extraInformation" format="string" />
</declare-styleable>
</resources>
Notice the use of an unqualified name in the declare-styleable tag. Non-standard android attributes like extraInformation need to have their type declared. Ta...