NonRelational

Examples:

• CouchDB
• Neo4j
• Cassandra
• HBase
• DynamoDB

Categories:

• key-value stores
• graph stores
• column stores
• document stores
  joins generally not supported

Good For:

• super-low latency
• unstructured (or unrelated) data
• for purely serialising/deserialising data (e.g. JSON)
• storing massive amounts of data