mongo

db

// server
sudo mongod
 
 
// mongo consola
mongo
 
show dbs
 
 
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mongo
 
sudo mkdir -p /data/db
 
sudo chmod -R 775 /data/db
 
 
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sudo mongod
 
 
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// Run mongo db
mongod
 
// Run console
mongo
 
// show databases
show dbs
 
// show current database
db
 
// Creating database
use db_name
 
 
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CRUD Commands
 
Create
 
// save one user
$ db.users.save({ name: 'Chris' });
 
// save multiple users
$ db.users.save([{ name: 'Chris'}, { name: 'Holly' }]);
 
By saving a document into the users collection of the database you are currently in, you have successfully created both the database and collection if they did not already exist.
 
Read
 
// show all users
$ db.users.find();
 
// find a specific user
$ db.users.find({ name: 'Holly' });
 
Update
 
db.users.update({ name: 'Holly' }, { name: 'Holly Lloyd' });
Delete
 
// remove all
db.users.remove({});
 
// remove one
db.users.remove({ name: 'Holly' });