The __________ requires that each transaction Ti executes in two or three different phases in its lifetime, depending on whether it is a read-only or an update transaction.
The __________ requires that each transaction Ti executes in two or three different phases in its lifetime, depending on whether it is a read-only or an update transaction. Correct Answer Validation protocol
A concurrency-control scheme imposes the overhead of code execution and possible delay of transactions. It may be better to use an alternative scheme that imposes less overhead.