Adding Information: Database, Collection and Document

• How do you create a new database?

  .
  
  

  • Type use name where name is the new database
  • Add a document to a collection

• How do you create a new collection?

  .
  
  

  • Select a database: use name
  • Save a document: db.name-of-collection.save({document})
  • A collection name-of-collection will be created
  • Alternatively use insert() instead of save()

• How do you insert a single document?

  .
  
  

  • db.name-of-collection.save({document})
  • db.name-of-collection.insert({document})

• How can you insert a group of documents in a batch?

  .
  
  

  • db.name-of-collection.insert(array of [{document},{document}])
  • May want to specify the write concern

• Can you have different fields?

  .
  
  

  • Yes

• What problems can occur when adding information?

  .
  
  

  • Beware of typos! You could accidentally create a new database or collection.