Mongodb is another database system using the features of RDBMS and key-value stores. It's a non-sql database. All the results display in json format. MongoDB is a scalable document database, which is also open source. In MongoDB there are no tables and rows. You have collections and documents instead. And collections can contain any type of document, it is not limited by the columns or fields like a table. i.e. Mongodb is schemaless. So that you can update with new fields,
without altering the entire structure. In the case of RDBMS you must change the schema.
Mongodb can be download from here: Downloads
Mongodb installation for unix : Installation
In this post i'm writing about symfony2+doctrine2-ODM+mongodb
doctrine2-ODM (Doctrine MongoDB Object Document Mapper). You can read more from here.
There is a blog tutorial in here.
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