NoSQL (Non-Relational Databases)
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NoSQL databases are flexible and scalable, allowing for unstructured and semi-structured data like documents, JSON, XML. They are schema-free, support easy replication across clusters, have simple APIs, and can handle huge amounts of data. Common types include document stores like MongoDB, key-value stores like Redis, column stores like Cassandra, and graph databases like Neo4j.
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NoSQL (Non-Relational Databases)
- 2. • Rigid (fixed schema) • Stable Data • Structured Data • Flexible (schema-free) • Scalable Data • Unstructured Data (Semi-Structured)
- 3. • SQL databases store data in form of tables, rows, columns and records. • This data is stored in a pre-defined data model.
- 10. NoSQL database A NoSQL database is a database that provides a mechanism to store and retrieve data other than the tabular relations used in relational databases. These databases are: • schema-free • support easy replication • have simple API • horizontal scaling • Consistent or eventually consistent • and can handle huge amounts of data
- 14. Scaling
- 16. CAP theorem
- 17. CAP theorem(Eric Brewer) New article: CAP Twelve Years Later: How the "Rules" Have Changed
- 19. Types of NoSQL databases: • Document Oriented • Key Value • Column Oriented • Graph