---
title: "Name and describe three types of binary relationships."  
description: "Name and describe three types of binary relationships."  
author: "Sumit Kesarwani"  
published: 2014-08-24  
updated: 2020-09-22  
canonical: https://www.mindstick.com/interview/1995/name-and-describe-three-types-of-binary-relationships  
category: "mssql server"  
tags: ["mssql server"]  
reading_time: 1 minute  

---

# Name and describe three types of binary relationships.

1:1 - a single entity instance of one type is related to a single-entity instance of another type.

1:N - a single entity instance of one type is related to many-entity instances of another type.

M:N - many-entity instances of one type relate to many-entity instances of another type.

## Answers

### Answer by Sumit Kesarwani

1:1 - a single entity instance of one type is related to a single-entity instance of another type.

1:N - a single entity instance of one type is related to many-entity instances of another type.

M:N - many-entity instances of one type relate to many-entity instances of another type.


---

Original Source: https://www.mindstick.com/interview/1995/name-and-describe-three-types-of-binary-relationships

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