Question

What conditions must be met in order to be a "complete" schedule?

1) The operations in the schedule are ____
2) For any pair of operations within the same transaction, ____
3) For any pair of conflicting operations, ____

Answer 1

A 'complete' schedule in the context of databases refers to a schedule that satisfies three conditions: order of execution, order preservation within transactions, and order preservation of conflicting operations.

Step-by-step explanation:

A 'complete' schedule in the context of databases refers to a schedule that satisfies three conditions:

1. The operations in the schedule are executed in the order they appear.
2. For any pair of operations within the same transaction, the order is preserved. This means that if there are two operations A and B within the same transaction, and A appears before B in the original schedule, then A should also appear before B in the complete schedule.
3. For any pair of conflicting operations, the order is preserved. Conflicting operations are operations that belong to different transactions and access the same data item. If there are two conflicting operations C and D, and C precedes D in the original schedule, then C should also precede D in the complete schedule.