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How important is the order of columns in indexes?
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Look at an index like this:
Cols
1 2 3
-------------
| | 1 | |
| A |---| |
| | 2 | |
|---|---| |
| | | |
| | 1 | 9 |
| B | | |
| |---| |
| | 2 | |
| |---| |
| | 3 | |
|---|---| |
See how restricting on A first, as ...
selecting unique values from a column
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answered Dec 20 '11 at 7:10
Léon RodenburgLéon Rodenburg
4,82411 gold badge1515 silver badges1717 bronze badges
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How to make zsh run as a login shell on Mac OS X (in iTerm)?
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edited Jun 15 '15 at 8:21
Community♦
111 silver badge
answered Feb 23 '13 at 18:33
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Comparing two CGRects
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250
Use this:
if (CGRectEqualToRect(self.view.frame, rect)) {
// do some stuff
}
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angular.element vs document.getElementById or jQuery selector with spin (busy) control
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227
It can work like that:
var myElement = angular.element( document.querySelector( '#some-id' ) )...
changing source on html5 video tag
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172
I hated all these answers because they were too short or relied on other frameworks.
Here is "o...
Xcode 5 & Asset Catalog: How to reference the LaunchImage?
...chImage (excluding the iPad images with no status bar):
LaunchImage-568h@2x.png
LaunchImage-700-568h@2x.png
LaunchImage-700-Landscape@2x~ipad.png
LaunchImage-700-Landscape~ipad.png
LaunchImage-700-Portrait@2x~ipad.png
LaunchImage-700-Portrait~ipad.png
LaunchImage-700@2x.png
LaunchImage-Landscape@2...
How to handle code when app is killed by swiping in android?
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edited May 23 '17 at 11:55
Community♦
111 silver badge
answered Nov 12 '14 at 8:38
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git pushes with wrong user from terminal
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