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Database Structure for Tree Data Structure
... which is Adjacency List:
https://blogs.msdn.microsoft.com/mvpawardprogram/2012/06/25/hierarchies-convert-adjacency-list-to-nested-sets
There are other models as well, including materialized path and nested sets:
http://communities.bmc.com/communities/docs/DOC-9902
Joe Celko has written a book on ...
Python decorators in classes
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answered Aug 20 '12 at 9:13
digitalacorndigitalacorn
10611 silver badge44 bronze badges
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What's the best practice for putting multiple projects in a git repository? [closed]
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204
While most people will tell you to just use multiple repositories, I feel it's worth mentionin...
How to detect orientation change?
...rning.
– Mythlandia
Jul 22 '18 at 6:20
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How to close a Java Swing application from the code
...= new Timer(500, task); //fire every half second
timer.setInitialDelay(2000); //first delay 2 seconds
timer.setRepeats(false);
timer.start();
}
public void windowClosed(WindowEvent e) {
//This will only be seen on standard output.
displayMessage("WindowListener method cal...
What's an appropriate HTTP status code to return by a REST API service for a validation failure?
...if you expect well-formed XML in an entity body and it fails to parse.
(1/2016): Over the last five years WebDAV's more specific HTTP 422 (Unprocessable Entity) has become a very reasonable alternative to HTTP 400. See for instance its use in JSON API. But do note that HTTP 422 has not made it int...
IntelliJ beginning of file keyboard shortcut
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Nathan BeachNathan Beach
2,14711 gold badge2020 silver badges2525 bronze badges
5
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Is quoting the value of url() really necessary?
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CSS 3 latest Editor's draft (may 2015) does not seem to allow quotes any more: dev.w3.org/csswg/css-syntax (check the url-token railroad schema) while current candidate recommendation (feb 2014) does: w3.org/TR/css-syntax-3 I suppose they want to promote usa...
Android Fragment lifecycle over orientation changes
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answered Jun 3 '13 at 6:20
abhiabhi
72955 silver badges1515 bronze badges
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CSS transition effect makes image blurry / moves image 1px, in Chrome?
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2020 update
If you have issues with blurry images, be sure to check answers from below as well, especially the image-rendering CSS property.
For best practice accessibility and SEO wise you could replace the background ima...