CouchDB - Introduction

本文介绍了CouchDB的基础知识,包括其作为NoSQL数据库的特点,如不使用SQL查询语言、不提供完全的ACID保证及分布式容错架构等。文中还详细说明了CouchDB的端口设置、UI工具Futon的访问方式以及通过HTTP方法进行数据库操作的具体步骤。

Reference  

HTTP API

CouchDB: The Definitive Guide

NoSQL is a class of database management system identified by its non-adherence to the widely used relational database management system (RDBMS) model:

  • It does not use SQL as its query language
  • It may not give full ACID guarantees
  • It has a distributed, fault-tolerant architecture


CouchDB uses port 5984. http://localhost:5984/

Futon, The UI for CouchDB http://localhost:5984/_utils/


general methods:

get all database names: http://localhost:5984/_all_dbs


HTTP Methods

CouchDB use RESTful methods for create, read, update, delete( CRUL ) databases.

  • To create a resource on the server, use POST.
  • To retrieve a resource, use GET.
  • To change the state of a resource or to update it, use PUT.
  • To remove or delete a resource, use DELETE.

For Debugging purpose, in Windows use wfetch, wfetch can generate GET/POST/PUT/DELETE requests without browser support


put method can create new database example:

host: http://localhost

port: 5984

path: /hello-world

method: POST

This POST action will generate a new database hello-world












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