mongodb 쿼리

SQL 문장 -> Mongo 쿼리 문장

CREATE TALE USERS (a int, b int) -> db.createCollection(“mycoll”)

INSERT INTO USERS VALUES (3,5) -> db.users.insert({a:3, b:5})

SELECT a, b FROM USERS -> db.users.find({}, {a:1, b:1})

SELECT * FROM users -> db.users.find()

SELECT * FROM users WHERE age=33 -> db.users.find({age:33})

SELECT a,b FROM users WHERE age=33 -> db.users.find({age:33}, {a:1,b:1})

SELECT * FROM users WHERE age=33 ORDER BY name -> db.users.find({age:33}).sort({name:1})

SELECT * FROM users WHERE age>33 -> db.users.find({‘age’:{$gt:33}})

SELECT * FROM users WHERE age<33 -> db.users.find({‘age’:{$lt:33}})

SELECT * FROM users WHERE name LIKE”%Joe%” -> db.users.find({name:/Joe/})

SELECT * FROM users WHERE name LIKE “Joe%” -> db.users.find({name:/^Joe/})

SELECT * FROM users WHERE age>33 AND age<=40 -> db.users.find({‘age’:{$gt:33,$lte:40}})

SELECT * FROM users ORDER BY name DESC -> db.users.find().sort({name:-1})

SELECT * FROM users WHERE a=1 and b=’q’ -> db.users.find({a:1,b:’q’})

SELECT * FROM users WHERE a=1 or b=2 -> db.users.find( { $or : [ { a : 1 } , { b : 2 } ] } )

SELECT * FROM users LIMIT 1 -> db.users.findOne()

SELECT DISTINCT last_name FROM users -> db.users.distinct(‘last_name’)

SELECT COUNT(*y) FROM users -> db.users.count()

SELECT COUNT(*y) FROM users where AGE > 30 -> db.users.find({age: {‘$gt’: 30}}).count()

SELECT COUNT(AGE) from users -> db.users.find({age: {‘$exists’: true}}).count()

CREATE INDEX myindexname ON users(name) -> db.users.ensureIndex({name:1})

CREATE INDEX myindexname ON users(name,ts DESC) -> db.users.ensureIndex({name:1,ts:-1})

EXPLAIN SELECT * FROM users WHERE z=3 -> db.users.find({z:3}).explain()

UPDATE users SET a=1 WHERE b=’q’ -> db.users.update({b:’q’}, {$set:{a:1}}, false, true)

UPDATE users SET a=a+2 WHERE b=’q’ -> db.users.update({b:’q’}, {$inc:{a:2}}, false, true)

DELETE FROM users WHERE z=”abc” -> db.users.remove({z:’abc’});

출처 : https://jy86.tistory.com/entry/MongoDB-MongoDB-%EB%AA%85%EB%A0%B9%EC%96%B4-%EC%BF%BC%EB%A6%AC-%EC%82%AC%EC%9A%A9%EB%B2%95