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SQL Statement
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Mongo Statement
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CREATE TABLE USERS (a Number, b Number)
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implicit; can also be done
explicitly with
db.createCollection("mycoll")
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ALTER TABLE users ADD ...
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implicit |
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INSERT INTO USERS VALUES(3,5)
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db.users.insert({a:3,b:5})
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db.users.find({}, {a:1,b:1})
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SELECT * FROM users WHERE age=33
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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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SELECT * FROM users WHERE age=33 ORDER BY name
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db.users.find({age:33}).sort({name:1})
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SELECT * FROM users WHERE age>33
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db.users.find({age:{$gt:33}})
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SELECT * FROM users WHERE age!=33
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db.users.find({age:{$ne:33}})
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SELECT * FROM users WHERE name LIKE "%Joe%"
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db.users.find({name:/Joe/})
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SELECT * FROM users WHERE name LIKE "Joe%"
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db.users.find({name:/^Joe/})
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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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SELECT * FROM users ORDER BY name DESC
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db.users.find().sort({name:-1})
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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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SELECT * FROM users LIMIT 10 SKIP 20
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db.users.find().limit(10).skip(20)
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SELECT * FROM users WHERE a=1 or b=2
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db.users.find( { $or : [ { a : 1 } , { b : 2 } ] } )
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SELECT * FROM users LIMIT 1
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SELECT order_id FROM orders o, order_line_items li WHERE
li.order_id=o.order_id AND li.sku=12345
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db.orders.find({"items.sku":12345},{_id:1})
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SELECT customer.name FROM customers,orders WHERE
orders.id="q179" AND orders.custid=customer.id
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var o = db.orders.findOne({_id:"q179"});
var name = db.customers.findOne({_id:o.custid})
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SELECT DISTINCT last_name FROM users
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db.users.distinct('last_name')
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SELECT COUNT(*y)
FROM users
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SELECT COUNT(*y)
FROM users where AGE > 30
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db.users.find({age: {'$gt': 30}}).count()
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SELECT COUNT(AGE) from users
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db.users.find({age: {'$exists': true}}).count()
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CREATE INDEX myindexname ON users(name)
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db.users.ensureIndex({name:1})
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CREATE INDEX myindexname ON users(name,ts DESC)
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db.users.ensureIndex({name:1,ts:-1})
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EXPLAIN SELECT * FROM users WHERE z=3
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db.users.find({z:3}).explain()
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UPDATE users SET a=1 WHERE b='q'
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db.users.update({b:'q'}, {$set:{a:1}}, false, true)
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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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DELETE FROM users WHERE z="abc"
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db.users.remove({z:'abc'});
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