---
title: "Explain the SQL Server backups and their types"  
description: "Database backups are essential for protecting data and ensuring recoverability in case of failures or disasters."  
author: "Ashutosh Patel"  
published: 2024-07-04  
updated: 2024-07-05  
canonical: https://www.mindstick.com/articles/336326/explain-the-sql-server-backups-and-their-types  
category: "mssql server"  
tags: ["mssql server", "sql server", "sql"]  
reading_time: 3 minutes  

---

# Explain the SQL Server backups and their types

### SQL Server Backups

In SQL Server, backups are necessary to protect data and ensure recovery in the event of a failure or disaster. There are many backup options, each serving a different purpose.

#### Types of SQL Database Backups

Here are the three main types of SQL [database backups](https://www.mindstick.com/forum/55082/why-are-database-backups-so-important) are given,

#### Full Backup

- A full backup takes the entire database at a specified time, including all data and objects.\ It is the basis for other types of backups and it is important to restore the state of the database during a backup.
- Generally, full backups are scheduled regularly to ensure comprehensive [data protection](https://www.mindstick.com/blog/303929/what-is-data-protection-and-why-is-it-important).

## Example-

1. **Backup using SQL Query**

SQL Query BACKUP DATABASE is used to take the [database backup](https://www.mindstick.com/forum/33859/sqlite-database-backup),

```javascript
USE [YourDatabaseName]
GO
BACKUP DATABASE [YourDatabaseName]
TO DISK = 'D:\Users\Database BackUp\mindstickdb\YourDatabaseName.bak';
```

## In the example above

- don't forget to replace the `[YourDatabaseName]` with your actual database name.
- add appropriate file location in your system
- don't forget to add [file extension](https://www.mindstick.com/forum/23173/getting-a-mime-type-from-a-file-extension-in-asp-dot-net-4-5) `.bak` with your database name.

**2. using SQL Server [Management System](https://www.mindstick.com/blog/11871/making-progress-in-chemical-manufacturing-how-a-laboratory-information-management-system-lims-ens) (SSMS)**

Follow the given steps to backup the SQL Database using SSMS,

**Step-1** Open and login in to SSMS

**step-2** Right click on the database name which you want to backup and select the `Task` option and then `Back Up...` as given in the below picture,

![Explain the SQL Server backups and their types](https://www.mindstick.com/mindstickarticle/7008e4a6-42e7-47cb-8e2e-577b3840dbd8/images/945aed19-94c2-43b4-98f5-bfb93037902a.png)

####

**Step- 3** A new window will open in which some options are need to select like, **Database:** DatabaseName, **Backup Type:** Full, Backup Component: Database (default selected), and **Back up to:** Disk as the given below in the picture,

![Explain the SQL Server backups and their types](https://www.mindstick.com/mindstickarticle/7008e4a6-42e7-47cb-8e2e-577b3840dbd8/images/edb1377a-a12e-4112-8680-2f2736e3c492.png)

**Step- 4** Now, you need to add a specific folder **location** after click on `Add` buttonwith file name with extension `.bak` in your system to save the database backup file as given below in the picture,

![Explain the SQL Server backups and their types](https://www.mindstick.com/mindstickarticle/7008e4a6-42e7-47cb-8e2e-577b3840dbd8/images/a6f6f7a3-a718-42fb-b2a7-0a984b787c58.jpg)

**Step- 5** Now click `OK` button to take the backup of your database like given below,

![Explain the SQL Server backups and their types](https://www.mindstick.com/mindstickarticle/7008e4a6-42e7-47cb-8e2e-577b3840dbd8/images/7a795fe3-e2b5-4141-9b98-6a6ee72ce53c.jpg)

**Step- 6** The response will come when the database backup successfully

![Explain the SQL Server backups and their types](https://www.mindstick.com/mindstickarticle/7008e4a6-42e7-47cb-8e2e-577b3840dbd8/images/fff59097-338c-417b-9f6d-07d36a6c2ef0.jpg)

#### \
Differential Backup

- A [differential backup](https://www.mindstick.com/forum/161030/what-is-the-difference-between-a-full-backup-differential-backup-and-transaction-log-backup-in-sql) retrieves only data that has changed since the last **full backup**.
- It reduces the **time** and **space** required compared to a **full backup**, speeding up build and recovery.
- Useful for situations where full backups are often impractical due to database sizes or time constraints.

## Example-

To create a differential backup, you use the `BACKUP DATABASE` statement with the `DIFFERENTIAL` option as follows,

```javascript
USE database_name
GO;
BACKUP DATABASE database_name
TO DISK = path_to_backup_file
WITH DIFFERENTIAL;
```

#### Transaction Log Backup

- Transaction log backups capture all transaction log records created since the last transaction log backup.
- Recovery is allowed for a certain period of time, known as seasonal relief.
- They are required to ensure minimal data loss when a failure occurs or maintain a [standby server](https://answers.mindstick.com/qa/92519/what-is-the-standby-server) for [disaster recovery](https://answers.mindstick.com/qa/105323/what-is-the-role-of-ai-in-disaster-recovery-planning).

## Example-

To create a **transaction log backup**, you use the `BACKUP LOG` statement.

```javascript
BACKUP LOG database_name
TO DISK = path_to_backup_file
WITH options;
```

Each backup type serves a specific purpose to ensure the integrity and recoverability of SQL [Server databases](https://www.mindstick.com/forum/160904/how-to-secure-sql-server-databases-and-prevent-unauthorized-access). Effective backup strategies typically combine these types based on database size, recovery needs, and performance requirements to ensure complete data protection and downtime in the event of a failure the work is limited.

**Also, Read:** [How do I use CTE to simplify complex queries in SQL Server?](https://www.mindstick.com/blog/304466/how-do-i-use-cte-to-simplify-complex-queries-in-sql-server)

---

Original Source: https://www.mindstick.com/articles/336326/explain-the-sql-server-backups-and-their-types

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