Explore MongoDB: Learn Why This Database Management System Is So Popular

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MongoDB

A good basic intro to MongoDB:

MongoDB Features at a glance

MongoDB is a lot more than just a basic key/value store. Let’s take a brief look at some of its other features:

Official binaries available for Windows®, Mac OS X, Linux® and Solaris, source distribution available for self-build

Official drivers available for C, C#, C++, Haskell, Java™, JavaScript, Perl, PHP, Python, Ruby and Scala, with a large range of community-supported drivers available for other languages

Ad-hoc JavaScript queries that allow you to find data using any criteria on any document attribute. These queries mirror the functionality of SQL queries, making it very straightforward for SQL developers to write MongoDB queries.

Support for regular expressions in queries

MongoDB query results are stored in cursors that provide a range of functions for filtering, aggregation, and sorting including limit(), skip(), sort(), count(), distinct() and group().

map/reduce implementation for advanced aggregation

Large file storage using GridFS

RDBMS-like attribute indexing support, where you can create indexes directly on selected attributes of a document

Query optimization features using hints, explain plans, and profiling

Master/slave replication similar to MySQL

Collection-based object storage, allowing for referential querying where normalized data is required

Horizontal scaling with auto-sharding

In-place updates for high-performance contention-free concurrency

Online shell allows you to try out MongoDB without installing

In-depth documentation, several books published and currently in writing