---
title: What is an Index?
description: What is an Index?
---

[Skip to content](https://help.datasciencedojo.com/migration/what-is-an-index#main-content)

English

Show submenu for translations

[Customer portal](https://help.datasciencedojo.com/tickets-view?hsLang=en)

![DSD main logo.png\]](https://help.datasciencedojo.com/hs-fs/hubfs/DSD%20main%20logo.png?height=40&name=DSD%20main%20logo.png)

- [Default HubSpot Blog](https://help.datasciencedojo.com/blog)

Open main navigation

Close main navigation

- [Default HubSpot Blog](https://help.datasciencedojo.com/blog)
- English
  
  Show submenu for translations
- [Customer portal](https://help.datasciencedojo.com/tickets-view)
- Go to datasciencedojo.com

 Go to datasciencedojo.com

 How can we help?

- There are no suggestions because the search field is empty.

1. [Help Center](https://help.datasciencedojo.com/migration?hsLang=en)
2. [SQL](https://help.datasciencedojo.com/migration/sql?hsLang=en)

# What is an Index?

An index is performance tuning method of allowing faster retrieval of records from the table. An index creates an entry for each value and it will be faster to retrieve da

- [Data Science Bootcamp](https://help.datasciencedojo.com/migration/data-science-bootcamp?hsLang=en#main-content)

    - [Certificate](https://help.datasciencedojo.com/migration/data-science-bootcamp?hsLang=en#certificate)
    - [Logistics](https://help.datasciencedojo.com/migration/data-science-bootcamp?hsLang=en#logistics)
    - [Curriculum](https://help.datasciencedojo.com/migration/data-science-bootcamp?hsLang=en#curriculum)
    - [Target Audience](https://help.datasciencedojo.com/migration/data-science-bootcamp?hsLang=en#target-audience)
    - [Talk to an Advisor](https://help.datasciencedojo.com/migration/data-science-bootcamp?hsLang=en#talk-to-an-advisor)
    - [Prerequisites](https://help.datasciencedojo.com/migration/data-science-bootcamp?hsLang=en#prerequisites)
    - [Pricing](https://help.datasciencedojo.com/migration/data-science-bootcamp?hsLang=en#pricing)
    - [Policies](https://help.datasciencedojo.com/migration/data-science-bootcamp?hsLang=en#policies)
- [Large Language Models Bootcamp](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#main-content)

    - [Logistics](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#logistics)
    - [Curriculum](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#curriculum)
    - [Certificate](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#certificate)
    - [Prerequisites](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#prerequisites)
    - [Eligibility](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#eligibility)
    - [Talk to an advisor](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#talk-to-an-advisor)
    - [Pricing](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#pricing)
    - [Delivery](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#delivery)
    - [Program Overview](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#program-overview)
    - [Policies](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#policies)
    - [Registration](https://help.datasciencedojo.com/migration/large-language-models-bootcamp?hsLang=en#registration)
- [Agentic AI Bootcamp](https://help.datasciencedojo.com/migration/agentic-ai-bootcamp?hsLang=en#main-content)

    - [Prerequisites](https://help.datasciencedojo.com/migration/agentic-ai-bootcamp?hsLang=en#prerequisites)
    - [Logistics](https://help.datasciencedojo.com/migration/agentic-ai-bootcamp?hsLang=en#logistics)
    - [Curriculum](https://help.datasciencedojo.com/migration/agentic-ai-bootcamp?hsLang=en#curriculum)
    - [Program Overview](https://help.datasciencedojo.com/migration/agentic-ai-bootcamp?hsLang=en#program-overview)
    - [Pricing](https://help.datasciencedojo.com/migration/agentic-ai-bootcamp?hsLang=en#pricing)
    - [Preparatory Material](https://help.datasciencedojo.com/migration/agentic-ai-bootcamp?hsLang=en#preparatory-material)
    - [Policies](https://help.datasciencedojo.com/migration/agentic-ai-bootcamp?hsLang=en#policies)
    - [Talk to an Advisor](https://help.datasciencedojo.com/migration/agentic-ai-bootcamp?hsLang=en#talk-to-an-advisor)
    - [Registration](https://help.datasciencedojo.com/migration/agentic-ai-bootcamp?hsLang=en#registration)
- [Registration](https://help.datasciencedojo.com/migration/registration?hsLang=en#main-content)

    - [Payment Methods](https://help.datasciencedojo.com/migration/registration?hsLang=en#payment-methods)
    - [Free Certificate](https://help.datasciencedojo.com/migration/registration?hsLang=en#free-certificate)
    - [Tuition Benefits](https://help.datasciencedojo.com/migration/registration?hsLang=en#tuition-benefits)
- [Pricing](https://help.datasciencedojo.com/migration/pricing?hsLang=en)
- [Community](https://help.datasciencedojo.com/migration/community?hsLang=en#main-content)

    - [FODAI 2025 - Sept Edition](https://help.datasciencedojo.com/migration/community?hsLang=en#fodai-2025-sept-edition)
    - [FODAI 2026](https://help.datasciencedojo.com/migration/community?hsLang=en#fodai-2026)
- [Python Programming](https://help.datasciencedojo.com/migration/python-programming?hsLang=en)
- [Platform Related Issues](https://help.datasciencedojo.com/migration/platform-related-issues?hsLang=en#main-content)

    - [Community](https://help.datasciencedojo.com/migration/platform-related-issues?hsLang=en#community)
- [Bootcamps](https://help.datasciencedojo.com/migration/bootcamps?hsLang=en#main-content)

    - [Formats and Delivery](https://help.datasciencedojo.com/migration/bootcamps?hsLang=en#formats-and-delivery)
    - [Certificates](https://help.datasciencedojo.com/migration/bootcamps?hsLang=en#certificates)
    - [Policies](https://help.datasciencedojo.com/migration/bootcamps?hsLang=en#policies)
    - [Session Access](https://help.datasciencedojo.com/migration/bootcamps?hsLang=en#session-access)
    - [Benefits](https://help.datasciencedojo.com/migration/bootcamps?hsLang=en#benefits)
    - [Exercises](https://help.datasciencedojo.com/migration/bootcamps?hsLang=en#exercises)
    - [Tuition Benefits](https://help.datasciencedojo.com/migration/bootcamps?hsLang=en#tuition-benefits)
    - [Logistics](https://help.datasciencedojo.com/migration/bootcamps?hsLang=en#logistics)
    - [Testimonials](https://help.datasciencedojo.com/migration/bootcamps?hsLang=en#testimonials)
- [Homework and Notebooks](https://help.datasciencedojo.com/migration/homework-and-notebooks?hsLang=en#main-content)

    - [Personal Assigments](https://help.datasciencedojo.com/migration/homework-and-notebooks?hsLang=en#personal-assigments)
- [Free Courses](https://help.datasciencedojo.com/migration/free-courses?hsLang=en)
- [Data Science for Business](https://help.datasciencedojo.com/migration/data-science-for-business?hsLang=en#main-content)

    - [Program Overview](https://help.datasciencedojo.com/migration/data-science-for-business?hsLang=en#program-overview)
- [Practicum](https://help.datasciencedojo.com/migration/practicum?hsLang=en#main-content)

    - [Logistics](https://help.datasciencedojo.com/migration/practicum?hsLang=en#logistics)
    - [Program Overview](https://help.datasciencedojo.com/migration/practicum?hsLang=en#program-overview)
- [Blog](https://help.datasciencedojo.com/migration/blog?hsLang=en#main-content)

    - [Content Collaboration](https://help.datasciencedojo.com/migration/blog?hsLang=en#content-collaboration)
    - [Guest Posts](https://help.datasciencedojo.com/migration/blog?hsLang=en#guest-posts)
    - [Link Exchanges/Insertions](https://help.datasciencedojo.com/migration/blog?hsLang=en#link-exchanges-insertions)
- [Employment Assistance](https://help.datasciencedojo.com/migration/employment-assistance?hsLang=en#main-content)

    - [Resumes](https://help.datasciencedojo.com/migration/employment-assistance?hsLang=en#resumes)
    - [Internships](https://help.datasciencedojo.com/migration/employment-assistance?hsLang=en#internships)
    - [Profile Shortlisting](https://help.datasciencedojo.com/migration/employment-assistance?hsLang=en#profile-shortlisting)
    - [Career Paths](https://help.datasciencedojo.com/migration/employment-assistance?hsLang=en#career-paths)
    - [Applying for Mentor](https://help.datasciencedojo.com/migration/employment-assistance?hsLang=en#applying-for-mentor)
- [Machine Learning](https://help.datasciencedojo.com/migration/machine-learning?hsLang=en#main-content)

    - [Unsupervised](https://help.datasciencedojo.com/migration/machine-learning?hsLang=en#unsupervised)
    - [Supervised](https://help.datasciencedojo.com/migration/machine-learning?hsLang=en#supervised)
    - [Statistics](https://help.datasciencedojo.com/migration/machine-learning?hsLang=en#statistics)
    - [Deep Learning](https://help.datasciencedojo.com/migration/machine-learning?hsLang=en#deep-learning)
    - [Timeseries](https://help.datasciencedojo.com/migration/machine-learning?hsLang=en#timeseries)
- [Data Analysis](https://help.datasciencedojo.com/migration/data-analysis?hsLang=en)
- [R Language](https://help.datasciencedojo.com/migration/r-language?hsLang=en)
- [Python for Data Science](https://help.datasciencedojo.com/migration/python-for-data-science?hsLang=en#main-content)

    - [Prerequisites](https://help.datasciencedojo.com/migration/python-for-data-science?hsLang=en#prerequisites)
    - [Pricing](https://help.datasciencedojo.com/migration/python-for-data-science?hsLang=en#pricing)
    - [Curriculum](https://help.datasciencedojo.com/migration/python-for-data-science?hsLang=en#curriculum)
    - [Program Overview](https://help.datasciencedojo.com/migration/python-for-data-science?hsLang=en#program-overview)
- [SQL](https://help.datasciencedojo.com/migration/sql?hsLang=en)
- [Introduction to Power BI](https://help.datasciencedojo.com/migration/introduction-to-power-bi?hsLang=en)
- [Power BI](https://help.datasciencedojo.com/migration/power-bi?hsLang=en)
- [Programming and Tools](https://help.datasciencedojo.com/migration/programming-and-tools?hsLang=en#main-content)

    - [SQL](https://help.datasciencedojo.com/migration/programming-and-tools?hsLang=en#sql)
- [Partnerships](https://help.datasciencedojo.com/migration/partnerships?hsLang=en)

- [Default HubSpot Blog](https://help.datasciencedojo.com/blog)

[![Chill listening crop-3](https://help.datasciencedojo.com/hs-fs/hubfs/DSD%20main%20logo.png?width=95&height=24&name=DSD%20main%20logo.png "Chill listening crop-3")](https://datasciencedojo.com)

<https://www.linkedin.com/company/data-science-dojo/> <https://twitter.com/DataScienceDojo> <https://www.youtube.com/c/Datasciencedojo> <https://instagram.com/data_science_dojo?igshid=YmMyMTA2M2Y=> <https://www.facebook.com/datasciencedojo>

Copyright © 2026, Data Science Dojo