---
title: "What is a covered index?"  
description: "What is a covered index?"  
author: "Sumit Kesarwani"  
published: 2013-12-29  
updated: 2020-09-18  
canonical: https://www.mindstick.com/interview/1867/what-is-a-covered-index  
category: "c#"  
tags: ["c#"]  
reading_time: 1 minute  

---

# What is a covered index?

A covered index is a non clustered index that contains all the columns in a query.

## Answers

### Answer by Sumit Kesarwani

A covered index is a non clustered index that contains all the columns in a query.


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Original Source: https://www.mindstick.com/interview/1867/what-is-a-covered-index

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