use [database name]
Creates or switches to use a database,
dbbecomes the variable to reference the current database
show dbs
List all databases
db.[collection_name].save({ a: ‘hey’})
Saves a document to the collection, if the collection does not exist on the current database mongo will create it
show collections
List all collections in current database
db.[collection_name].find()
List all documents for collection
db.[collection_name].find({ a: ‘hey’})
Find all documents where the key
ais equal tohey