MySQLMongoDB說明

mysqldmongod服務器守護進程

mysqlmongo客戶端工具

mysqldumpmongodump邏輯備份工具

mysqlmongorestore邏輯恢復工具

db.repairDatabase()修復數據庫

mysqldumpmongoexport數據導出工具

sourcemongoimport數據導入工具

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

Db.auth()新建用戶并權限

show databasesshow dbs顯示庫列表

Show tablesShow collections顯示表列表

Show slave statusRs.status查詢主從狀態

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

size:100000}) 另：可隱式創建表。創建表

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

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

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

Select a, b from usersdb.users.find({},{a:1, b:1})查詢表

Select * from usersdb.users.find()查詢表

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

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

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

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

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

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

select * from users limit 1db.users.findOne()條件查詢

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

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

select count(1) from usersDb.users.count()獲取表記錄數

select count(1) from users where age>30db.users.find({age: {'$gt': 30}}).count()獲取表記錄數

select DISTINCT last_name from usersdb.users.distinct('last_name')去掉重復值

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()獲取存儲路徑

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

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

delete from users where z="abc"db.users.remove({z:'abc'})刪除記錄

db. users.remove()刪除所有的記錄

drop database IF EXISTS test;use test

db.dropDatabase()刪除數據庫

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

db.addUser(‘test', 'test')添加用戶

readOnly-->false

db.addUser(‘test', 'test', true)添加用戶

readOnly-->true

db.addUser("test","test222")更改密碼

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

或者db.removeUser('test')刪除用戶

use admin超級用戶

db.auth(‘test', ‘test')用戶授權

db.system.users.find()查看用戶列表

show users查看所有用戶

db.printCollectionStats()查看各collection的狀態

db.printReplicationInfo()查看主從復制狀態

show profile查看profiling

db.copyDatabase('mail_addr','mail_addr_tmp')拷貝數據庫

db.users.dataSize()查看collection數據的大小

db. users.totalIndexSize()查詢索引的大小