MySQLMongoDB说明

mysqldmongod服务器守护进程

mysqlmongo客户端工具

mysqldumpmongodump逻辑备份工具

mysqlmongorestore逻辑恢复工具

db.repairDatabase()修复数据库

mysqldumpmongoexport数据导出工具

sourcemongoimport数据导入工具

grant * privileges on *.* to …Db.addUser()

Db.auth()新建用户并权限

show databasesshow dbs显示库列表

Show tablesShow collections显示表列表

Show slave statusRs.status查询主从状态

Create table users(a int, b int)db.createCollection("mycoll", {capped:true,

size:100000}) 另：可隐式创建表。创建表

Create INDEX idxname ON users(name)db.users.ensureIndex({name:1})创建索引

Create INDEX idxname ON users(name,ts DESC)db.users.ensureIndex({name:1,ts:-1})创建索引

Insert into users values(1, 1)db.users.insert({a:1, b:1})插入记录

Select a, b from usersdb.users.find({},{a:1, b:1})查询表

Select * from usersdb.users.find()查询表

Select * from users where age=33db.users.find({age:33})条件查询

Select a, b from users where age=33db.users.find({age:33},{a:1, b:1})条件查询

select * from users where age<33db.users.find({'age':{$lt:33}})条件查询

select * from users where age>33 and age<=40db.users.find({'age':{$gt:33,$lte:40}})条件查询

select * from users where a=1 and b='q'db.users.find({a:1,b:'q'})条件查询

select * from users where a=1 or b=2db.users.find( { $or : [ { a : 1 } , { b : 2 } ] } )条件查询

select * from users limit 1db.users.findOne()条件查询

select * from users where name like "%Joe%"db.users.find({name:/Joe/})模糊查询

select * from users where name like "Joe%"db.users.find({name:/^Joe/})模糊查询

select count(1) from usersDb.users.count()获取表记录数

select count(1) from users where age>30db.users.find({age: {'$gt': 30}}).count()获取表记录数

select DISTINCT last_name from usersdb.users.distinct('last_name')去掉重复值

select * from users ORDER BY namedb.users.find().sort({name:-1})排序

select * from users ORDER BY name DESCdb.users.find().sort({name:-1})排序

EXPLAIN select * from users where z=3db.users.find({z:3}).explain()获取存储路径

update users set a=1 where b='q'db.users.update({b:'q'}, {$set:{a:1}}, false, true)更新记录

update users set a=a+2 where b='q'db.users.update({b:'q'}, {$inc:{a:2}}, false, true)更新记录

delete from users where z="abc"db.users.remove({z:'abc'})删除记录

db. users.remove()删除所有的记录

drop database IF EXISTS test;use test

db.dropDatabase()删除数据库

drop table IF EXISTS test;db.mytable.drop()删除表/collection

db.addUser(‘test', 'test')添加用户

readOnly-->false

db.addUser(‘test', 'test', true)添加用户

readOnly-->true

db.addUser("test","test222")更改密码

db.system.users.remove({user:"test"})

或者db.removeUser('test')删除用户

use admin超级用户

db.auth(‘test', ‘test')用户授权

db.system.users.find()查看用户列表

show users查看所有用户

db.printCollectionStats()查看各collection的状态

db.printReplicationInfo()查看主从复制状态

show profile查看profiling

db.copyDatabase('mail_addr','mail_addr_tmp')拷贝数据库

db.users.dataSize()查看collection数据的大小

db. users.totalIndexSize()查询索引的大小