Insert Documents in Collection in MongoDB

We can insert documents in the collection using the two methods:

• insertOne()
• insertMany()

Let’s understand each of these methods with examples.

insertOne() Method

insertOne() method is used to insert only one document in the collection.

Example:

db.myNewCollection1.insertOne( { name:"w3wiki" } )

Here, we create a collection named as “myNewCollection1” by inserting a document that contains a “name” field with its value in it using insertOne() method.

insertMany() method

insertMany() method is used to insert many documents in the collection

Example:

db.myNewCollection2.insertMany([{name:"gfg", country:"India"},
                                {name:"rahul", age:20}])

Here, we create a collection named as myNewCollection2 by inserting two documents using insertMany() method.

MongoDB stores data records as documents that are stored together in collections and the database stores one or more collections of documents.

In this article, we will look at methods to create a database and collection in MongoDB.