Indexing

Lesson in the MongoDB Roadmap · Stage 10: Scaling MongoDB

Last updated 14 September 2026

What is Indexing?

Indexing in MongoDB creates data structures that improve query performance by creating shortcuts to documents. Indexes are built on specific fields and allow the database to quickly locate data without scanning entire collections. MongoDB supports various index types including single field, compound, multikey, geospatial, text, and hashed indexes to optimize different query patterns and use cases.

Study this in the interactive course See the whole MongoDB roadmap

Free resources to learn Indexing

CourseIndexing Design Fundamentals Skill Badge
Official docsIndexing
ArticleHow To Use Indexes in MongoDB

Indexing: common questions

Can I learn Indexing in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Indexing in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Indexing tutorial for beginners?

It is lesson 90 of 106 in the free MongoDB roadmap, in stage 10, Scaling MongoDB. If you are new to MongoDB, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.