MongoDB (Document Database)是由C++語言編寫的嘉汰,是一個(gè)基于分布式文件存儲(chǔ)的開源數(shù)據(jù)庫系統(tǒng)。
在高負(fù)載的情況下状勤,添加更多的節(jié)點(diǎn),可以保證服務(wù)器性能双泪。
MongoDB 旨在為WEB應(yīng)用提供可擴(kuò)展的高性能數(shù)據(jù)存儲(chǔ)解決方案持搜。
MongoDB 將數(shù)據(jù)存儲(chǔ)為一個(gè)文檔,數(shù)據(jù)結(jié)構(gòu)由鍵值(key=>value)對(duì)組成焙矛。MongoDB 文檔類似于 JSON 對(duì)象葫盼。字段值可以包含其他文檔,數(shù)組及文檔數(shù)組村斟。
MongoDB is an open-source document database that provides high performance, high availability, and automatic scaling.
A record in MongoDB is a document, which is a data structure composed of field and value pairs. MongoDB documents are similar to JSON objects. The values of fields may include other documents, arrays, and arrays of documents.