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Difference between clustered and nonclustered index [duplicate]
...mn(s). It is like a dictionary, where all words are sorted in alphabetical order in the entire book.
A non-clustered index, on the other hand, does not alter the way the rows are stored in the table. It creates a completely different object within the table that contains the column(s) selected for...
When is it better to use an NSSet over an NSArray?
...
When the order of the items in the collection is not important, sets offer better performance for finding items in the collection.
The reason is that a set uses hash values to find items (like a dictionary) while an array has to iter...
google chrome extension :: console.log() from background page?
...an still use console.log(), but it gets logged into a separate console.
In order to view it - right click on the extension icon and select "Inspect popup".
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How to change color of SVG image using CSS (jQuery SVG image replacement)?
...y code (in a separate file or inline in the HEAD).
/**
* Replace all SVG images with inline SVG
*/
jQuery('img.svg').each(function(){
var $img = jQuery(this);
var imgID = $img.attr('id');
var imgClass = $img.attr('class');
var im...
rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
...same error in my development environment. In the end all I needed to do in order to fix it was to add:
config.assets.manifest = Rails.root.join("public/assets")
to my config/environments/development.rb file and it fixed it. My final config in development related to assets looks like:
config.asse...
How do I find the length of an array?
... (rather than a compilation error). (2) It requires a type parameter so in order to check a variable you would have to do decltype
– Motti
Jul 16 '18 at 11:30
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How to install the Raspberry Pi cross compiler on my Linux host machine?
...Profanter, how would one go about making the toolchain path independent in order to place it in a path other than /opt/cross-pi-gcc ?
– nass
Apr 26 at 8:37
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John Carmack's Unusual Fast Inverse Square Root (Quake III)
.....discarded...]
And the task has now came down to calculate a0 and a1 in order for y to have the least difference from the exact value. They have calculated that the most appropriate values are:
a0 = 0x5f375a86
a1 = -0.5
So when you put this into equation you get:
y = 0x5f375a86 - 0.5*x
Whic...
postgresql return 0 if returned value is null
... your query:
SELECT AVG( price )
FROM(
SELECT *, cume_dist() OVER ( ORDER BY price DESC ) FROM web_price_scan
WHERE listing_Type = 'AARM'
AND u_kbalikepartnumbers_id = 1000307
AND ( EXTRACT( DAY FROM ( NOW() - dateEnded ) ) ) * 24 < 48
AND COALESCE( price, 0 )...
Grab a segment of an array in Java without creating a new array on heap
...rious primitive types and helps manage slicing, position, conversion, byte ordering, etc.
If your bytes originate from a Stream, the NIO Buffers can use "direct mode" which creates a buffer backed by native resources. This can improve performance in a lot of cases.
...