MySQL |
MongoDB |
說明 |
mysqld |
mongod |
伺服器守護進程 |
mysql |
mongo |
用戶端工具 |
mysqldump |
mongodump |
邏輯備份工具 |
mysql |
mongorestore |
邏輯恢複工具 |
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db.repairDatabase() |
修複資料庫 |
mysqldump |
mongoexport |
資料匯出工具 |
source |
mongoimport |
資料匯入工具 |
grant * privileges on *.* to … |
Db.addUser() Db.auth() |
建立使用者並許可權 |
show databases |
show dbs |
顯示庫列表 |
Show tables |
Show collections |
顯示表列表 |
Show slave status |
Rs.status |
查詢主從狀態 |
Create table users(a int, b int) |
db.createCollection("mycoll", {capped:true, size:100000}) 另:可隱式建立表。 |
建立表 |
Create INDEX idxname ON users(name) |
db.users.ensureIndex({name:1}) |
建立索引 |
Create INDEX idxname ON users(name,ts DESC) |
db.users.ensureIndex({name:1,ts:-1}) |
建立索引 |
Insert into users values(1, 1) |
db.users.insert({a:1, b:1}) |
插入記錄 |
Select a, b from users |
db.users.find({},{a:1, b:1}) |
查詢表 |
Select * from users |
db.users.find() |
查詢表 |
Select * from users where age=33 |
db.users.find({age:33}) |
條件查詢 |
Select a, b from users where age=33 |
db.users.find({age:33},{a:1, b:1}) |
條件查詢 |
select * from users where age<33 |
db.users.find({‘age‘:{$lt:33}}) |
條件查詢 |
select * from users where age>33 and age<=40 |
db.users.find({‘age‘:{$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=2 |
db.users.find( { $or : [ { a : 1 } , { b : 2 } ] } ) |
條件查詢 |
select * from users limit 1 |
db.users.findOne() |
條件查詢 |
select * from users where name like "%Joe%" |
db.users.find({name:/Joe/}) |
模糊查詢 |
select * from users where name like "Joe%" |
db.users.find({name:/^Joe/}) |
模糊查詢 |
select count(1) from users |
Db.users.count() |
擷取表記錄數 |
select count(1) from users where age>30 |
db.users.find({age: {‘$gt‘: 30}}).count() |
擷取表記錄數 |
select DISTINCT last_name from users |
db.users.distinct(‘last_name‘) |
去掉重複值 |
select * from users ORDER BY name |
db.users.find().sort({name:-1}) |
排序 |
select * from users ORDER BY name DESC |
db.users.find().sort({name:-1}) |
排序 |
EXPLAIN select * from users where z=3 |
db.users.find({z:3}).explain() |
擷取儲存路徑 |
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 |
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db. users.remove() |
刪除所有的記錄 |
drop database IF EXISTS test; |
use test db.dropDatabase() |
刪除資料庫 |
drop table IF EXISTS test; |
db.mytable.drop() |
刪除表/collection |
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db.addUser(‘test’, ’test’) |
添加使用者 readOnly-->false |
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db.addUser(‘test’, ’test’, true) |
添加使用者 readOnly-->true |
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db.addUser("test","test222") |
更改密碼 |
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db.system.users.remove({user:"test"}) 或者db.removeUser(‘test‘) |
刪除使用者 |
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