Topic 11924 min readStructured Tutorial
MongoDB Indexing: Single Field Index Tutorial
Quick Answer
A single field index in MongoDB is an index on one field of a document. It improves query performance by allowing MongoDB to quickly locate documents based on that field's value, reducing the need for full collection scans.
Learning Objectives
- Understand what a single field index is in MongoDB.
- Learn how to create and use single field indexes.
- Recognize the performance benefits and limitations of single field indexes.
Introduction
Indexes in MongoDB are special data structures that store a small portion of the collection’s data set in an easy-to-traverse form.
A single field index targets one specific field in documents, allowing faster query execution when filtering by that field.
An index is like a table of contents for your database.
