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Points to Note

SQL Server Management Studio does not provide a graphical interface for creating snapshots; the only way to create them is using TSQL commands.The snapshot file name accepts arbitrary file extensions.SQL Server does not support backup operations over sparse files. In other words, sparse files cannot be backed up.A database snapshot appears to never change, because read operations on a database snapshot always accesses the original data pages, regardless of where it resides. sqlshack.com

Perform The Revert Database Operation Using The Snapshot

Let’s see how to revert the accidental updates performed on the source database from the recently taken snapshot In this example, we revert the changes made on the table, SQLShackAuthorDS, using the snapshot by merging the authorname column based on the id field. The following output shows that the data is updated sqlshack.com

Revert The Entire Database Using Restore Operation

A database revert operation requires the RESTORE DATABASE permissions on the source database. To revert the database, use the following Transact-SQL statement: sqlshack.com

How to Decide

Snapshot backups can be used for reporting purpose.Snapshots provide a historical reference for auditing.Reverting the source database to a specific point in time is faster.Using database snapshots with database mirroring permits you to make the data on the mirror server accessible for reporting. sqlshack.com

Summary

In this article, we have discussed the difference between snapshots and backups in SQL Server, making it easier for an administrator to choose between the two available options. We saw that a snapshot represents a point-in-time reference to the original database. The two are very different techniques and from a performance perspective, a snapshot i

References

Database snapshot in SQL ServerView the Size of the Sparse File of a Database Snapshot (Transact-SQL)Revert a Database to a Database SnapshotView a Database Snapshot (SQL Server) sqlshack.com

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