Restoring is the process of copying data from a backup and applying logged transactions

What is database restore in SQL Server?

A complete database restore involves restoring a full database backup and, optionally, a differential backup (if any), followed by restoring all subsequent log backups (in sequence). The complete database restore is finished by recovering the last log backup and also restoring it (RESTORE WITH RECOVERY).

What is backup and restore in database?

backup [noun] A copy of data that can be used to restore and recover the data after a failure. Backups of a database can also be used to restore a copy the database to a new location. backup device. A disk or tape device to which SQL Server backups are written and from which they can be restored.