Nosql

from the AWS Cassandra White paper we can read https://d0.awsstatic.com/whitepapers/Cassandra_on_AWS.pdf

One way to choose a NoSQL

database types is by looking at the underlying data model, as shown following:

  • Key-value stores: Data is organized as key-value relationships and accessed by primary key. These products are typically distributed row stores. Examples are Cassandra and Amazon DynamoDB.
  • Graph databases: Data is organized as graph data structures and accessed through semantic queries. Examples are Titan and Neo4J.
  • Document databases: Data is organized as documents (for example, JSON files) and accessed by fields within the documents. Examples are MongoDB and DynamoDB.
  • Columnar databases: Data is organized as sections of columns of data, rather than rows of data. Example: HBase. DynamoDB shows up in both document and key-value stores in this list because it supports storing and querying both key-value pairs and objects in a document

format like JSON, XML, or HTML

this cleary sponsorize the DynamoDB solution

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