# start
./bin/mongod --dbpath /Users/haivu/dev/mongodb-osx-x86_64-3.6.1/data
mongo [server]//mongo shell
mongo 127.0.0.1:27017
// get current database
db
//list db
show dbs
// create database
use testData
show collections
//insert into testData Collection
db.testData.insert({name: haivu});
db.testData.find()
db.collection.find()
db.collection.findOne()
db.collection.aggregate()
db.collection.count()
db.collection.distinct()