how to backup and restore database in sql server 2019

In this video, we have showed how to backup and restore database in sql server 2019 step-by-step.
Before you begin
Review and consider the following requirements before you begin backing up and restoring your database:

You must have DBOwner rights to be able to restore the BAK file, otherwise, if you try to import the BAK file back in, you will get an error.
Use a 'sa' or sa-equivalent account when attempting to back up and restore to achieve the best results.
Be particular about the account you use for creating the backup, even if you decide to use another file type for the backup, such as MDF or LDF files. Administrator-like accounts with all rights give you the highest chance of creating the backup file successfully.