Nosql Questions
The different types of NoSQL databases include:
1. Document databases: These databases store and retrieve data in the form of documents, typically using JSON or XML formats. Examples include MongoDB and CouchDB.
2. Key-value stores: These databases store data as key-value pairs, where each value is associated with a unique key. Examples include Redis and Riak.
3. Columnar databases: These databases store data in columns rather than rows, allowing for efficient querying and analysis of specific columns. Examples include Apache Cassandra and HBase.
4. Graph databases: These databases are designed to store and process graph-like data structures, such as nodes and edges. They are used for applications that require complex relationships and network analysis. Examples include Neo4j and Amazon Neptune.
5. Wide-column stores: These databases are similar to columnar databases but allow for dynamic column addition, making them more flexible for handling evolving data models. Examples include Apache Cassandra and ScyllaDB.
It is important to note that these types of NoSQL databases are not mutually exclusive, and some databases may incorporate features from multiple types.