What are some disadvantages of time stamping methods for concurrency control?
What are some disadvantages of time stamping methods for concurrency control?
What are some of the advantages to Agile Methods over Waterfall? What are some disadvantages?
1 What are the disadvantages and advantages of birth control pills, IUD, and over-the-counter methods. 2. Why would a person use emergency contraception, and how does it work? 3. What are the abortion procedures used in each trimester of pregnancy? 4. What are the presumptive signs of pregnancy, the probable signs and the positive signs of pregnancy? 5. Pregnancy is divided into 3 trimesters, what happens in each? 6. Describe the three stages of labor and delivery. 7. What are...
- Identify one benefit and one drawback of each concurrency control strategy in an OLTP application. Explain. - Identify one benefit and one drawback of each concurrency control strategy in a data warehouse. Explain. - Suggest a scenario for a hypothetical OLTP business system where optimistic concurrency control is most appropriate and another scenario where pessimistic concurrency control is most appropriate. - How would the type of user, such as a computer program, an internal business user, or a customer...
database of operating system Purpose: To help you know about the main concepts of concurrency control and recovery. Topic of Discussion: According to the conflicts and failure in transactions processing, the need of concurrency control and recovery appeared. Discuss the differences between concurrency control and recovery in terms of: · The purposes. · The algorithms. · The problems.
- Identify one benefit and one drawback of each concurrency control strategy in a data warehouse. Explain. - Suggest a scenario for a hypothetical OLTP business system where optimistic concurrency control is most appropriate and another scenario where pessimistic concurrency control is most appropriate. - How would the type of user, such as a computer program, an internal business user, or a customer on the web, affect your choices?
Discuss the deadlock avoidance, detection and resolution for database concurrency control?
Q6: To provide a high degree of transaction concurrency in DBMS and ensuring that all schedules are conflict, recoverable and cascadeless, we need some concurrency control mechanisms for that purpose. Briefly explain three concurrency control mechanisms with real-world application for each of those mechanism.
What are some formal methods of communication in an effective performance management system? What are some informal methods of communication in an effective performance management system? What are some advantages and disadvantages of formal methods and informal methods?
ATTEMPT ALL QUESTIONS Compare and contrast Pessimistic and Optimistic Concurrency Control techniques. 5 marks Describe quorum-based protocol for distributed concurrency control. 5 marks Discuss how distributed systems are used in organizations 10 marks Discuss the techniques used to facilitate distributed query processing and Optimization. 10 marks
Explain how timestamps are used for concurrency control and deadlock prevention. Also explain how does the Thomas write rule improve concurrency?