Non Relational DB Categories

Non Relational Databases can be classified into four major categories such as Key-values database, column database, document database and graph database.

  • Key-values database: This is the simplest form of NoSQL database where each value is associated with unique key.

Example : Redis

  • Column database: This database is capable of storing and processing large amount of data using a pointer that points to many columns that are distributed over a cluster.

Example : HBase

  • Document database: This database can contain many key-values documents with many nested level. Efficient querying is possible with this database. The documents are stored in JSON format.

Example : MongoDB

  • Graph database: Instead of traditional rows and columns, this databases uses nodes and edges to represent graph structures and store data.

Example : Neo4J

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