Components of CouchDB

Components of CouchDB

Apache CouchDB is a popular open-source document-oriented NoSQL database that uses JSON format to store and retrieve data. It offers a range of features that make it a popular choice for web and mobile applications. Here are some of the key components of CouchDB:

1. Database: CouchDB stores data in a database, which is a collection of documents. Each document is stored as a JSON object and has a unique identifier.
2. Document: A document is the basic unit of data in CouchDB. It can be a simple object or a complex hierarchical structure. Each document has a unique identifier, which is used to retrieve or update it.
3. View: A view is a defined subset of data that is extracted from a database. Views are defined using MapReduce functions, which enable efficient querying and indexing of data.
4. Replication: CouchDB provides a built-in replication feature, which enables data synchronization between multiple CouchDB instances. This feature is useful for creating distributed applications and for backup and disaster recovery.
5. API: CouchDB provides a RESTful API for interacting with the database. This API enables developers to perform CRUD (Create, Read, Update, and Delete) operations on data using HTTP requests.
6. Query server: CouchDB supports various query languages such as JavaScript, Python, and Ruby. It also provides a query server, which enables developers to write custom queries using any programming language.

Overall, these components work together to provide a flexible, scalable, and reliable database solution for modern web and mobile applications

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