wcc526的专栏

一.安装和启动Mongodbapt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10echo 'deb http://downloads-distro.mongodb.org/repo/debian-sysvinit dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb

基本操作> use tutorialswitched to db tutorial> db.users.insert({username: "smith"})> db.users.find(){ "_id" : ObjectId("52ad42948312746372d831ae"), "username" : "smith"> db.users.save({username: "j

一分片多区间当一个块越来越大时,MongoDB会自动将其分割成两个较小的块