Reverting a Source Database from a Database Snapshot
Reverting is just a logical term for using the DATABASE RESTORE command with the FROM DATABASE_SNAPSHOT statement. It effectively causes the point-in-time database snapshot to become the source database. Under the covers, much of this is managed from the system catalog metadata level. However, the results are that the source database will be in exactly the same state as the database snapshot. When you use a database snapshot as the basis of a database restore, all other database snapshots that have the same source database must first be dropped. Again, to see what database snapshots may be defined for a particular database, you can execute the following query:
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