MongoDB Insert Document(s)

MongoDB Insert Document

In MongoDB, inserting documents into a collection is done using the insertOne and insertMany methods. These methods allow you to add one or more documents to a collection, respectively.

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Syntax

db.collection.insertOne(document)
db.collection.insertMany([document1, document2, ...])

The insertOne method inserts a single document, while the insertMany method inserts multiple documents at once.

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Example MongoDB Insert Document

Let's look at some examples of how to insert documents into a collection in MongoDB:

1. Insert a Single Document

db.programGuru.insertOne({ name: "John Doe", age: 30, email: "john.doe@example.com" })

This command inserts a single document into the programGuru collection.

2. Insert Multiple Documents

db.programGuru.insertMany([
    { name: "Jane Smith", age: 25, email: "jane.smith@example.com" },
    { name: "Jim Brown", age: 35, email: "jim.brown@example.com" }
])

This command inserts multiple documents into the programGuru collection.

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Full Example

Let's go through a complete example that includes switching to a database, creating a collection, inserting documents, and verifying the insertions.

Step 1: Switch to a Database

This step involves switching to a database named myDatabase.

use myDatabase

In this example, we switch to the myDatabase database.

Step 2: Create a Collection

This step involves creating a new collection named programGuru in the myDatabase database.

db.createCollection("programGuru")

Here, we create a collection named programGuru.

Step 3: Insert Documents into the Collection

This step involves inserting documents into the programGuru collection.

Insert a Single Document

db.programGuru.insertOne({ name: "John Doe", age: 30, email: "john.doe@example.com" })

We insert a single document into the programGuru collection.

Insert Multiple Documents

db.programGuru.insertMany([
    { name: "Jane Smith", age: 25, email: "jane.smith@example.com" },
    { name: "Jim Brown", age: 35, email: "jim.brown@example.com" }
])

We insert multiple documents into the programGuru collection.

Step 4: Verify the Insertions

This step involves querying the programGuru collection to verify that the documents have been inserted.

db.programGuru.find().pretty()

This command retrieves all documents from the programGuru collection and displays them in a readable format.

Conclusion

The MongoDB insert document operation is essential for adding data to collections. Understanding how to insert single and multiple documents allows you to effectively manage your data in MongoDB.