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When should I use a composite index?
...olumn_A )
But it will not (at least not directly, maybe it can help partially if there are no better indices) help for queries that need
index( column_A, column_C )
Notice how column_B is missing.
In your original example, a composite index for two dimensions will mostly benefit queries that q...
How to copy to clipboard in Vim?
...e support. Download a different version as per ubuntuforums.org/showthread.php?t=1686955
– Sparhawk
Aug 3 '13 at 5:39
67
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How to initialize all members of an array to the same value?
... array in C (not C++ if that makes a difference). I want to initialize all members of the same value.
23 Answers
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CSS last-child(-1)
...
Unless you can get PHP to label that element with a class you are better to use jQuery.
jQuery(document).ready(function () {
$count = jQuery("ul li").size() - 1;
alert($count);
jQuery("ul li:nth-child("+$count+")").css("color","red");
}...
What is the difference between MySQL Server and MySQL Client
...
Presumably, if I am using a server side language, like PHP or Coldfusion [.cfml] to query my databases, I only need to install MySQL Server. For instance, in Coldfusion, we use Coldfusion Administrator to set up our data sources, which uses a MySQL Driver to provide the connectio...
Is there a way to follow redirects with command line cURL?
I know that in a php script:
3 Answers
3
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Alternate FizzBuzz Questions [closed]
...
I've seen a small list of relatively simple programming problems used to weed out candidates, just like FizzBuzz. Here are some of the problems I've seen, in order of increasing difficulty:
Reverse a string
Reverse a sentence ("bob likes...
Is it possible to force Excel recognize UTF-8 CSV files automatically?
...s. The application always uses UTF-8 because of its multilingual nature at all levels. But opening such CSV files (containing e.g. diacritics, cyrillic letters, Greek letters) in Excel does not achieve the expected results showing something like Г„/Г¤, Г–/Г¶ . And I don't know how to forc...
Why is arr = [] faster than arr = new Array?
...BER, IDENTIFIER)
new Array: NEW, IDENTIFIER
new Array(): NEW, IDENTIFIER, CALL
new Array(5): NEW, IDENTIFIER, CALL (NUMBER)
new Array(5,4): NEW, IDENTIFIER, CALL (NUMBER, NUMBER)
new Array(5, foo): NEW, IDENTIFIER, CALL (NUMBER, IDENTIFIER)
Hopefully this should provide you a sufficient visualizat...
Are there any free Xml Diff/Merge tools available? [closed]
... has now been replaced by Oso XML Merge: osocorporation.com/xmlmerge/index.php
– leetNightshade
Aug 4 '16 at 23:48
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