show dbs----> Will show all the dbs present on the computeruse db-name----> Will create new collection if not present already
show collections----> Shows the collestions present
db.items.insertOne({name: "sample-name", age: 18})---> Will add one document to dbdb.items.insertMany([{{name: "sample-name-1", age: 1},{name: "sample-name-2", age: 2}])---> Will add many documents into the db.dp.intems.find()---> Shows all the enties made in the db.show collections---> shows all the the collections. From the above commands it will show items (because of db.items.)