---
title: "What is the .bak file in sqlserver ?"  
description: "What is the .bak file in sqlserver ?"  
author: "Anonymous User"  
published: 2018-08-03  
updated: 2018-08-03  
canonical: https://www.mindstick.com/forum/34654/what-is-the-bak-file-in-sqlserver  
category: "mssql server"  
tags: ["database", "sql server"]  
reading_time: 1 minute  

---

# What is the .bak file in sqlserver ?

[Please tell me](https://www.mindstick.com/forum/33900/please-tell-me-what-are-the-technique-to-content-optimization) that way how can [transfer](https://www.mindstick.com/blog/11733/debt-management-for-startups-consolidation-loan-vs-balance-transfer) and [restore](https://yourviews.mindstick.com/story/1480/ways-to-restore-ecosystems-and-heal-the-planet) my [database](https://www.mindstick.com/articles/12226/use-of-database-in-sencha-extjs-and-insert-record-from-user-form-using-ajax) in any other [PCs](https://yourviews.mindstick.com/story/2181/points-that-make-ias-and-pcs-different) or applications.

## Replies

### Reply by Anonymous User

The SQL Server Backup (BAK) File option mounts databases from SQL server.BAK files. This option includes full, differential, and transaction log backups. You can mount several.BAK files of the same content database.

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