Topic 12030 min readStructured Tutorial
MongoDB Compound Indexes Explained
Quick Answer
A MongoDB compound index is an index structure that includes multiple fields within a single index. It improves query performance when filtering or sorting on multiple fields by allowing MongoDB to efficiently locate documents matching combined criteria.
Learning Objectives
- Understand what a compound index is and how it differs from single-field indexes.
- Learn how to create and use compound indexes in MongoDB.
- Identify scenarios where compound indexes improve query performance.
Introduction
Indexes are critical in MongoDB for improving query performance by allowing the database to quickly locate documents.
A compound index is an index on multiple fields within a document, enabling efficient queries that filter or sort on those fields together.
This tutorial explains how compound indexes work, when to use them, and how to create them effectively.
