- MySQL
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- MongoDB
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- 说明
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- mysqld
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- mongod
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- 服务器守护进程
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- mysql
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- mongo
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- 客户端工具
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- mysqldump
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- mongodump
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- 逻辑备份工具
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- mysql
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- mongorestore
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- 逻辑恢复工具
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- ?
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- db.repairDatabase()
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- 修复数据库
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- mysqldump
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- mongoexport
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- 数据导出工具
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- source
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- mongoimport
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- 数据导入工具
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- grant * privileges on *.* to …
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- Db.addUser()
- Db.auth()
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- 新建用户并权限
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- show databases
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- show dbs
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- 显示库列表
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- Show tables
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- Show collections
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- 显示表列表
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- Show slave status
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- Rs.status
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- 查询主从状态
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- Create table users(a int, b int)
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- db.createCollection("mycoll", {capped:true,
- size:100000}) 另：可隐式创建表。
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- 创建表
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- Create INDEX idxname ON users(name)
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- db.users.ensureIndex({name:1})
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- 创建索引
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- Create INDEX idxname ON users(name,ts DESC)
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- db.users.ensureIndex({name:1,ts:-1})
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- 创建索引
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- Insert into users values(1, 1)
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- db.users.insert({a:1, b:1})
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- 插入记录
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- Select a, b from users
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- db.users.find({},{a:1, b:1})
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- 查询表
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- Select * from users
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- db.users.find()
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- 查询表
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- Select * from users where age=33
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- db.users.find({age:33})
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- 条件查询
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- Select a, b from users where age=33
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- db.users.find({age:33},{a:1, b:1})
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- 条件查询
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- select * from users where age<33
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- db.users.find({'age':{$lt:33}})
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- 条件查询
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- select * from users where age>33 and age<=40
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- db.users.find({'age':{$gt:33,$lte:40}})
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- 条件查询
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- select * from users where a=1 and b='q'
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- db.users.find({a:1,b:'q'})
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- 条件查询
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- select * from users where a=1 or b=2
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- db.users.find( { $or : [ { a : 1 } , { b : 2 } ] } )
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- 条件查询
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- select * from users limit 1
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- db.users.findOne()
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- 条件查询
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- select * from users where name like "%Joe%"
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- db.users.find({name:/Joe/})
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- 模糊查询
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- select * from users where name like "Joe%"
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- db.users.find({name:/^Joe/})
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- 模糊查询
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- select count(1) from users
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- Db.users.count()
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- 获取表记录数
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- select count(1) from users where age>30
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- db.users.find({age: {'$gt': 30}}).count()
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- 获取表记录数
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- select DISTINCT last_name from users
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- db.users.distinct('last_name')
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- 去掉重复值
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- select * from users ORDER BY name
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- db.users.find().sort({name:-1})
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- 排序
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- select * from users ORDER BY name DESC
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- db.users.find().sort({name:-1})
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- 排序
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- EXPLAIN select * from users where z=3
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- db.users.find({z:3}).explain()
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- 获取存储路径
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- update users set a=1 where b='q'
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- db.users.update({b:'q'}, {$set:{a:1}}, false, true)
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- 更新记录
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- update users set a=a+2 where b='q'
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- db.users.update({b:'q'}, {$inc:{a:2}}, false, true)
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- 更新记录
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- delete from users where z="abc"
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- db.users.remove({z:'abc'})
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- 删除记录
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- ?
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- db. users.remove()
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- 删除所有的记录
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- drop database IF EXISTS test;
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- use test
- db.dropDatabase()
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- 删除数据库
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- drop table IF EXISTS test;
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- db.mytable.drop()
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- 删除表/collection
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- ?
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- db.addUser(‘test’, ’test’)
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- 添加用户
- readOnly-->false
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- ?
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- db.addUser(‘test’, ’test’, true)
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- 添加用户
- readOnly-->true
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- ?
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- db.addUser("test","test222")
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- 更改密码
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- ?
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- db.system.users.remove({user:"test"})
- 或者db.removeUser('test')
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- 删除用户
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- ?
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- use admin
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- 超级用户
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- ?
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- db.auth(‘test’, ‘test’)
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- 用户授权
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- ?
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- db.system.users.find()
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- 查看用户列表
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- ?
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- show users
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- 查看所有用户
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- ?
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- db.printCollectionStats()
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- 查看各collection的状态
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- ?
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- db.printReplicat
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