10 Questions
What condition must be met for two schedules to be considered view equivalent?
Both schedules must have the same set of transactions
In view serializability, what must a schedule be view equivalent to?
A serial schedule
What is the relationship between conflict serializability and view serializability?
Every view serializable schedule is also conflict serializable
Which of the following is a condition for view equivalence between two schedules?
Reads the initial value of Q
What distinguishes view equivalence in schedules?
Based purely on reads and writes
In view serializability, what must a schedule be equivalent to?
A serial schedule
What type of schedule is both conflict and view serializable?
Serial schedule
What characteristic must every conflict serializable schedule also have?
Consistent writes to data items
What must a transaction do in both schedules for them to be view equivalent?
Read from the same initial value of data items
If a schedule is view equivalent to a parallel schedule, what property does it fail to achieve?
Atomicity
Test your knowledge on concurrent execution issues in database systems based on the content from the 7th edition of 'Database System Concepts' by Silberschatz, Korth, and Sudarshan. Questions cover topics like the lost update problem, temporary update problem, and incorrect summary problem.
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