25.05.2017.

Tuesday.

Mongodb

Mongodb is a client sever architecture.

Write terminal

⟹sudo ./mongod      open sever
⟹sudo ./mongo        start work


⟹show dbs         we already create database.we write this command sever list the
                        database.

⟹use students     This command we used create a new database.student is a new
                         database name.

⟹db.createCollection("deatils")            create anew collection.deatils is a collection
                                                            name.

⟹db.details.insert({name:"mala",age:22})

 or

⟹db.details.insert({"name":"mala","age":22})   Insert the data in collection.

⟹db.details.find()              Find the insert all data.

⟹db.dropCollection            Delete the collection

⟹db.dropDatabase             Delete the database

⟹db.details.drop()              Delete the inset data

⟹db.detais.find({},{age:22,preety})      Only find age 22 data

⟹db.detail.find({},{name:1})

⟹db.detail.find({},{name:1},_id:0)

 ⟹db.detail.find().preety()