Question
CHAPTER 14 REVIEW QUESTIONS: 1. Explain the following statement: a transaction is a logical unit of work. 2. What is a consistent database state, and
CHAPTER 14 REVIEW QUESTIONS:
1. Explain the following statement: a transaction is a logical unit of work.
2. What is a consistent database state, and how is it achieved?
3. The DBMS does not guarantee that the semantic meaning of the transaction truly represents the real-world event. What are the possible consequences of that limitation? Give an example.
4. List and discuss the four transaction properties.
5. What does serializability of transactions mean?
6. What is a transaction log, and what is its function?
7. What is a scheduler, what does it do, and why is its activity important to concurrency control?
8. What is a lock, and how, in general, does it work?
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Put Your Data To Work 52 Tips And Techniques For Effectively Managing Your Database
Authors: Wes Trochlil
1st Edition
0880343079, 978-0880343077
