mongodb

http://www.cnblogs.com/mecity/archive/2011/06/11/2078527.html

Designed to store data the way your apps do.

Agile and Scalable 灵活，可扩展

Flexible Data Model 自由灵活的数据结构
MongoDB’s document data model makes it easy for you to store data of any structure and dynamically modify the schema.

Highly Scalable 高度可扩展性
Scale up or scale out horizontally, from a single server to thousands of nodes. Deploy in the cloud and across multiple data centers.

Robust Operational Tools 健壮的操作工具
MongoDB Management Service and Ops Manager allow you to deploy配置, monitor监控/测试, back up支持 and scale衡量 MongoDB with ease.

Expressive Query Language 多样化的查询语言
MongoDB’s query language provides varied field-level operators, data types and in-place updates. Drivers for just about any programming language make it intuitive to use.

Secondary Indexes 第二索引
Fast, fine-grained access to data, including fully consistent indexes on any field, as well as geospatial, text search and TTL indexes.

Fastest-Growing Community 快速成长的社区
Join the world’s fastest-growing database community. MongoDB stands behind its software to ensure your success, providing software and services to make life easier.