MongoDB is a reliable, document oriented, opensource database system tool. It is a software package that comes with the most useful handy functions that include auto-sharding, replication, storage based on document, querying, mapping, etc. The database is designed for working with cloud computing and it provides you high availability through mirror across LANs and WANs. It lets you work with various document based queries to make the most out of the database. The full index support lets you index based on any attribute and it also provides you easy aggregation and processing with your data. The data files of any size can be stored into organized grids.