What is an Index in MongoDB?

What is an Index in MongoDB?

In MongoDB, an index is a data structure that improves the speed of data retrieval operations on a collection. It works similarly to indexes in traditional relational databases but is adapted to the document-oriented nature of MongoDB. Indexes allow MongoDB to quickly locate documents in a collection without performing a full collection scan....

Steps to Setup a NodeJS App and Installing Module

Step 1: Create a NodeJS app using the following command...

Connecting to MongoDB

Now, let’s create a JavaScript file (e.g., app.js) and establish a connection to MongoDB:...

Creating Indexes

MongoDB allows creating indexes on single or multiple fields. Indexes can be created using the createIndex() method provided by the MongoDB Node.js driver. Let’s see how to create indexes:...

Index Types

MongoDB supports various types of indexes to optimize different types of queries. Some common index types include:...