Final answer:
Every database transaction must end with either a commit, which finalizes the changes, or a rollback, which undoes all changes made during the transaction.
Step-by-step explanation:
The question relates to database transaction management. In the context of a database, every transaction must conclude with an explicit end statement, which is either a commit or a rollback. A commit means that the transaction has been successfully completed, and all changes made during the transaction are now a permanent part of the database. A rollback, on the other hand, means that the transaction has been aborted, and all changes made during the transaction are undone, restoring the database to its previous state before the transaction began.