SQL Datbase Diff Backup

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SQL Datbase Diff Backup

Handian Sudianto 6,541

What mean from Diff backup Frequency? My value set to 12 hours, this mean the database will be backup every 12 hours?

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Mahesh Kurva 10,515 Reputation points Microsoft External Staff Moderator

2025-08-07T03:41:45.26+00:00

Hi Handian Sudianto,

Just checking in to see if the below answer provided by @TP helped.

If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

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Mahesh Kurva 10,515 Reputation points Microsoft External Staff Moderator

2025-08-07T03:41:45.26+00:00

Hi Handian Sudianto,

Just checking in to see if the below answer provided by @TP helped.

If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

Answer 1

TP 145.3K Volunteer Moderator

Hi,

Each week it performs a Full backup, plus every 12 or 24 hours (12 in your case) it does a Differential backup, plus approximately every 10 minutes it does log backup. When you do a restore it will automatically determine the combination of backups needed.

Below article explains in detail how backups work in Azure SQL Database:

Automated backups in Azure SQL Database

https://learn.microsoft.com/en-us/azure/azure-sql/database/automated-backups-overview?view=azuresql

-TP

Handian Sudianto 6,541 Reputation points

2025-08-06T05:38:36.7833333+00:00

hi..

So how if we wan to restore to last 36 hours ago?
TP 145.3K Reputation points Volunteer Moderator

2025-08-06T05:56:39.85+00:00

So how if we wan to restore to last 36 hours ago?

First subtract 36 hours from current UTC time = August 4, 2025 05:57PM

Navigate to the database in portal, click Restore, choose Select source: Point-in-time, Restore point (UTC): August 4, 2025 5:57PM

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SQL Datbase Diff Backup

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