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Storing Tree like Hierarchy Structures With MongoDB

, 16 Jan 2013 CC (ASA 3U)
This article demonstrates three approaches for storing tree like structures with NoSQL databases on example of the MongoDB.
use TreeMongo;

var descendants=[]

var ancestors = db.categoriesAAO.find({ancestors:"Cell_Phones_and_Accessories"},{_id:1});
while(true === ancestors.hasNext()) {
       var elem =;

var aggrancestors = db.categoriesAAO.aggregate([

descendants = aggrancestors.result[0].ancestors

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About the Author

Vyacheslav Voronenko
Web Developer
Ukraine Ukraine
Web Developer, interested in bleeding age web technologies and projects.

Experienced and interested in:
- High load web projects, bespoke software development
- DevOps: Chef, Ansible, Vagrant
- NoSQL (mongodb)
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- *AAS (Amazon beanstalk, Redhat openshift)
- MEAN & Pure JS stack (Javascript, AngularJS, Node.JS, MongoDB)

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