Couchbase
By Couchbase, Inc.
Couchbase is a distributed NoSQL Document Database that stores JSON documents and combines high-performance key-value access with a SQL-like query language (N1QL/SQL++) and built-in caching.
Definition
Couchbase is a distributed NoSQL Document Database that stores JSON documents and combines high-performance key-value access with a SQL-like query language (N1QL/SQL++) and built-in caching.
Overview
Couchbase formed from the 2011 merger of Membase (a distributed key-value store built on memcached) and CouchOne (commercial stewards of CouchDB), inheriting both a fast in-memory caching layer and a document-oriented data model. This heritage makes Couchbase distinct among NoSQL systems: it behaves like a distributed cache for hot data while persisting full JSON documents to disk. Instead of forcing developers to choose between a document database and a query language, Couchbase offers N1QL (also called SQL++), a SQL-inspired language for querying nested JSON, alongside full-text search, eventing, and mobile/edge synchronization via Couchbase Lite and Couchbase Mobile. Its distributed architecture uses automatic Sharding and cross-datacenter replication for Database Replication and resilience. Couchbase competes with other document and multi-model databases such as MongoDB and Amazon DocumentDB, differentiating on its memory-first architecture, mobile sync capabilities, and SQL-like query surface for JSON data.
Key Features
- JSON document storage with a memcached-derived caching layer
- N1QL (SQL++) query language for querying nested JSON
- Automatic sharding and cross-datacenter replication
- Built-in full-text search and eventing functions
- Couchbase Mobile/Lite for offline-first mobile and edge sync
- Multi-dimensional scaling of query, index, and data services independently