How can you use the COMMIT and ROLLBACK commands to support transactions?
You can use the COMMIT and ROLLBACK commands to support transactions as follows:
Before beginning the updates for a transaction, commit any previous updates by executing the COMMIT command.
Complete the updates for the transaction. If any update cannot be completed, execute the ROLLBACK command and discontinue the updates for the current transaction.
If you can complete all updates successfully, execute the COMMIT command after completing the final update.
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