MongoDB (Document Database)是由C++語言編寫的账磺,是一個基于分布式文件存儲的開源數(shù)據(jù)庫系統(tǒng)购披。
在高負載的情況下杖挣,添加更多的節(jié)點,可以保證服務器性能刚陡。
MongoDB 旨在為WEB應用提供可擴展的高性能數(shù)據(jù)存儲解決方案惩妇。
MongoDB 將數(shù)據(jù)存儲為一個文檔,數(shù)據(jù)結構由鍵值(key=>value)對組成筐乳。MongoDB 文檔類似于 JSON 對象歌殃。字段值可以包含其他文檔,數(shù)組及文檔數(shù)組蝙云。
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.