MongoDB NoSQL Database Commands

MongoDB is a source-available cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas.

The following is a non-exhaustive list of commonly used MongoDB Commands for quick reference.

Commands

• show dbs or show databases
  Print a list of all databases on the server.

• use <db>
  Switch current database to <db>. If this database doesn’t exist, it will be newly created.

• db
  View the current database.

• show collections or db.getCollectionNames()
  Get the list of all collections in the current database.

• db.dropDatabase()
  Drops the current database.

• db.<collection-name>.insertOne(<JSON>)
  Insert JSON to the collection of the current DB.
  Example: db.student.insertOne( {x:1} )

db.<collection-name>.insert(  
[  
     { _id: 1, name: "Java Hut", description: "Coffee and cakes" },  
     { _id: 2, name: "Burger Buns", description: "Gourmet hamburgers" },  
     { _id: 3, name: "Coffee Shop", description: "Just coffee" },  
     { _id: 4, name: "Clothes Clothes Clothes", description: "Discount clothing" },  
     { _id: 5, name: "Java Shopping", description: "Indonesian goods" }  
   ]
)

Bulk insert (sample) data into a collection

• db.<collection-name>.find()
  View the contents of a collection.
  Example: db.student.find()

• db.<collection-name>.find().pretty()
  View the contents of a collection nicely formatted.
  Example: db.student.find().pretty()

• db.<collection-name>.createIndex( {field-name1:"text", field-name2:"text"} )
  Text Index, to support text search queries on string content.
  Example: db.stores.createIndex( {name:"text", description:"text"} )

• db.<collection-name>.find( { $text: { $search: "text to search"} } )
  $text Operator, perform text searches on a collection with a text index.
  Example: db.stores.find( { $text: { $search: "java coffee shop" } } )