mongod /* 1 start db / mongo / 2 start console */
/* show databases / show dbs / choose somename database / use somename / then we can drop data base / db.dropDataBase(); / base will be removed */
/* we can create collections inside database / db.createCollection('users'); show collections / show all collections */
db.users.find() /* search in user model / db.users.findOne() / search once in user model / db.users.findOne().pretty() / pretify answer */
db.users.insert({ name:"SomeName", age:22 });