Question: Explain why it is important for the changes made by the Service Update Transaction to be atomic. Describe a scenario in which an update of

Explain why it is important for the changes made by the Service Update Transaction to be atomic. Describe a scenario in which an update of TotalHoursWorked could be lost during a Service Update Transaction. Explain how locking could be used to prevent the lost update. Do you think optimistic or pessimistic locking would be better for the Service Update Transactions?

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