3.7.2.1 Atomicity

Database manipulation requests are atomic. If one database manipulation request in a transaction fails, all of the pending changes can be rolled back by the client, leaving the database as it was before the transaction was initiated. However, the client also has the option to close the transaction, committing only the changes within that transaction which were executed successfully. If any database errors are encountered while committing the transaction, all updates are rolled back and the database is restored to its previous state.