NO SQL Types and vendors in market

NO SQL

KEY - VALUE Store - Similar to a MAP.
e.g. Dynamo DB or REDIS

DOCUMENT Sore - Similar to KEY-VALUE, value can be JSON/XML and key will be unqiuely idnetified this document.
e.g. Coutch DB or mongoDB.

Column Store - Multi timentional table, identifying data with row and column numbers.
e.g. Cassandra or Apache HBase

Graph Store - Store relation between nodes (record entities). It has better transaction management
e.g. Neo4J and Orient DB.

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