What is described by rollback?

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Multiple Choice

What is described by rollback?

Explanation:
Rollback undoes all changes made in the current transaction since the last commit, restoring the database to the state it had at that commit. This preserves atomicity: either the entire transaction is committed and becomes permanent, or all of its uncommitted updates are discarded by a rollback. It doesn’t move the database forward or permanently save updates—that’s what committing does.

Rollback undoes all changes made in the current transaction since the last commit, restoring the database to the state it had at that commit. This preserves atomicity: either the entire transaction is committed and becomes permanent, or all of its uncommitted updates are discarded by a rollback. It doesn’t move the database forward or permanently save updates—that’s what committing does.

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