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What is MongoDB?

What is MongoDB?. Developed by 10gen It is a NoSQL database A document-oriented database It uses BSON format . The Basics. A MongoDB instance may have zero or more databases A database may have zero or more ‘collections’. A collection may have zero or more ‘documents’.

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What is MongoDB?

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  1. What is MongoDB? • Developed by 10gen • It is a NoSQL database • A document-oriented database • It uses BSON format

  2. The Basics • A MongoDB instance may have zero or more databases • A database may have zero or more ‘collections’. • A collection may have zero or more ‘documents’. • A document may have one or more ‘fields’. • MongoDB ‘Indexes’ function much like their RDBMS counterparts.

  3. MongoDB vs. RDBMS • Collection vs. table • Document vs. row • Field vs. column • Collection isn't strict about what goes in it (it's schema-less)

  4. MongoDB in action…

  5. More actions…

  6. Using MongoDB with Rails require 'rubygems' require 'mongo' source 'http://gemcutter.org' gem "rails", "3.2.1" gem "mongo_mapper" bundle install

  7. Why use MongoDB • Simple queries • Makes sense with most web applications • Easier and faster integration of data • Not well suited for heavy and complex transactions systems.

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