Home Database Mysql Tutorial Mongodb学习(操作篇): 常用操作命令

Mongodb学习(操作篇): 常用操作命令

Jun 07, 2016 pm 04:29 PM
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查询所有数据库 show dbs; 切换/创建数据库 use mydb; 显示数据库中所有的集合 show collections 查询指定数据库包含的集合名称列表 db.getCollectionNames() 删除当前使用数据库 db.dropDatabase(); 查看当前使用的数据库 db.getName(); db 显示当前db状态

查询所有数据库 show dbs; 切换/创建数据库 use mydb; 显示数据库中所有的集合 show collections 查询指定数据库包含的集合名称列表 db.getCollectionNames() 删除当前使用数据库 db.dropDatabase(); 查看当前使用的数据库 db.getName(); db 显示当前db状态 db.stats(); 当前DB版本 db.version(); 查看当前db的链接机器地址 db.getMongo(); Help查看命令提示 help db.help(); db.yourColl.help(); db.youColl.find().help(); rs.help(); 从指定主机上克隆数据库 db.cloneDatabase(“127.0.0.1”); ?? 将指定机器上的数据库的数据克隆到当前数据库 从指定的机器上复制指定数据库数据到某个数据库 db.copyDatabase(“mydb”, “temp”, “127.0.0.1″); ? 将本机的mydb的数据复制到temp数据库中 修复当前数据库 db.repairDatabase(); 查看数据库服务器的状态 db.serverStatus()? 查询指定数据库的集合当前可用的存储空间 >use mydb; >db.userinfo.storageSize(); 查询指定数据库的集合分配的存储空间 >use mydb; > db.userinfo.totalSize(); 查看聚集集合基本信息 1、查看帮助? db.yourColl.help(); 2、查询当前集合的数据条数? [...]
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