SQL Server Database contains data that is of critical importance for every other organization. So, organizations are highly protective about it and are prepared for worst case scenarios, and high-risk data loss situations.
Considering the importance of the SQL database, it is recommended to create database file backup to stay ready and prepared for the darkest phase of database file corruption and damage events.
Otherwise, searching for methods regarding how to restore SQL Server database or tips to recover SQL database from suspect mode will become the only task with the highest priority in your to-do list. And doing so is not an easy job, as the inefficiency of native Microsoft applications leaves you with nothing but a handful of features that are only useful if the database files are accessible by the user, (and are not corrupt or damaged).
In this article, we will guide you on how to backup SQL Server database using different tools and will also discuss the importance of differential backups and provide a demonstration on how to create SQL Server differential backup, followed by the essentials of backing up the data and files.
General practice of creating backups is important especially when data is the key factor for the business. Doing so saves from the hassle of fixing things and finding ways for recovering what is already lost.
To understand the importance of creating backups, below are a few points elaborated:
Computer systems are prone to damage due to power outages, and this affects all the unsaved files and folders including the live & running instance of SQL Server database. Also, the hard drive can turn inaccessible because of such uncontrolled activity, making every piece of information stored on the drive locally, out of reach. Therefore, backup is the only thing that remains in your court to get things back to normal.
It’s nothing new that files and folders affected by viruses remain no longer accessible, and after multiple trials of accessing the affected files and folders, the virus spreads throughout the system. In the case of database files, virus attacks aren’t something to be considered differently. One should also worry about the problem of SQL injections. File backups allow faster recovery and restoration of files lost or damaged due to various reasons like virus attacks.
One of the reasons behind data loss, file corruption and damage out of many is the operating system crash. Why it happens, cannot be stated on the ground of certainty, but the causes behind can be many such as, outdated build, resource overloading, software corruption, improper memory allocation, system application errors, and more. In most cases, the user would have to reinstall the operating system. Thus all files and data stored locally on the hard-drive will be gone, in case if no backups are there.
Creating file or folder backups is not only an essential thing but also a good practice that assures that meaningful data won’t go anywhere no matter how worse the situation is. With backups, it becomes easy, fast, and convenient to retrieve the data.
The list of benefits associated to backups can go long but above given are few to get you started, and now that you know the perks of creating file backups, let’s proceed to create the SQL Server database backup.
Follow the steps given below to create SQL Server Database using Transact SQL on a disk device:
Note: Backups created using an earlier or later version of SQL Server can’t be restored using the other version of the software.
BACKUP DATABASE TechForums19
TO DISK = ‘Z:\SQLServerBackups\TechForums19.Bak’
MEDIANAME = ‘Z_SQLServerBackups’,
NAME = ‘Full Backup of TechForums19’,
Note: Above, TechForums19, is the database selected for backup, change it with the one you want to back up.
To create the SQL Server database backup using PowerShell, we’ll use the Backup-SqlDatabase cmdlet, and to create the full database backup, we’ll specify the optional -BackupAction parameter with its default value, which is Database.
Execute the below PowerShell command to create the full SQL Server Database backup:
Note: Above example, demonstrates the full database backup of a SQL Server Database, where Computer/Instance is the backup location of the server instance. Again, replace TechForums19 with your SQL Server database name.
Whenever creates a full SQL Server database backup, there are a few things that one should consider such as, creating full database backups is a lengthy and time-consuming task. If the database file size it large, it will require more storage to keep it.
Create SQL Server Differential Backup
Follow below steps to create the differential backup of a SQL Server Database:
Example showing both the full SQL Server database backup and differential backup:
–Initiate the differential backup after a change, or an update is made on the select SQL Server database.
BACKUP DATABASE TechForums19
Example showing only the differential backup:
Note: Make sure that you’ve created the full SQL Server database backup already; otherwise, the differential backup cannot be initiated.
Above are the methods to help you create full SQL Server database backups and Differential Backups. File backups are there to help you get out of database corruption situations but what to do when even the backup files turn corrupt or get damaged. In that case, you have two options:
Kernel for SQL Backup Recovery is made to fix corruption and damage issues in SQL Backup files. It restores MDF/NDF files from .bak files to live SQL Server/Batch file.
Follow the steps below for the data restoration from healthy/corrupt/damaged database backup (BAK) file.
You have successfully restored the data from SQL Server database backup (BAK) file.
Creating file backups is not only a good practice but also insurance which saves time and money. And Kernel for SQL Database Recovery is there to fix the issues, when the database files turn corrupt, and you wonder how to repair corrupt SQL database. It is a one-stop-shop for SQL repair & recovery. Alternately, you can restore SQL database files even from damaged SQL backup files using Kernel SQL Backup Recovery tool.