MongoDB (Document Database)是由C++語言編寫的骡显,是一個基于分布式文件存儲的開源數(shù)據(jù)庫系統(tǒng)。
在高負(fù)載的情況下曾掂,添加更多的節(jié)點惫谤,可以保證服務(wù)器性能。
MongoDB 旨在為WEB應(yīng)用提供可擴展的高性能數(shù)據(jù)存儲解決方案珠洗。
MongoDB 將數(shù)據(jù)存儲為一個文檔溜歪,數(shù)據(jù)結(jié)構(gòu)由鍵值(key=>value)對組成。MongoDB 文檔類似于 JSON 對象许蓖。字段值可以包含其他文檔蝴猪,數(shù)組及文檔數(shù)組调衰。
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.