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Foreign keys in mongo?
...like Mongoid or MongoMapper.
http://mongoid.org/docs/relations/referenced/1-n.html
In a NoSQL database like MongoDB there are not 'tables' but collections. Documents are grouped inside Collections. You can have any kind of document – with any kind of data – in a single collection. Basically, i...
Converting file size in bytes to human-readable string
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19 Answers
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When to use , tag files, composite components and/or custom components?
...g <ui:include> and other templating techniques offered by Facelets 1.x.
1 Answer
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quick random row selection in Postgres
...ith OFFSET, as in
SELECT myid FROM mytable OFFSET floor(random()*N) LIMIT 1;
The N is the number of rows in mytable. You may need to first do a SELECT COUNT(*) to figure out the value of N.
Update (by Antony Hatchkins)
You must use floor here:
SELECT myid FROM mytable OFFSET floor(random()*N) L...
CSS3 Rotate Animation
...mage {
position: absolute;
top: 50%;
left: 50%;
width: 120px;
height: 120px;
margin:-60px 0 0 -60px;
-webkit-animation:spin 4s linear infinite;
-moz-animation:spin 4s linear infinite;
animation:spin 4s linear infinite;
}
@-moz-keyframes spin { 100% { -m...
What is a servicebus and when do I need one?
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edited Apr 10 '19 at 7:18
answered Apr 28 '10 at 5:28
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How to set the title of UIButton as left alignment?
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12 Answers
12
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How to remove unwanted space between rows and columns in table?
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14 Answers
14
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Why are my JavaScript function names clashing?
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170
Function declarations are hoisted (moved to the top) in JavaScript. While incorrect in terms o...