The SQL Server backup and
restore component provides an important safeguard for protecting
critical data stored in SQL Server Databases. A well-planned backup
and restore strategy helps protect databases against data loss caused
by a variety of failures. Test your strategy by restoring a set of
backups and then recovering your database to prepare you to respond
effectively to a disaster.
A copy of data that can
be used to restore and recover the data is called a backup. Backups
let you restore data after a failure. With good backups, you can
recover from many failures, such as;
- Media failure
- User errors, for example, dropping a table by mistake
- Hardware failures, for example, a damaged disk drive or permanent loss of a server
- Natural disasters
Additionally, backups of
a database are useful for routine administrative purposes , such as
copying a database from one server to another, setting up database
mirroring, and archiving.
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