Explain with examples, how lost update and dirty read problems can occur in sentence of transactions?
Marks: 5Chapter: Unit 9: Transaction and Concurrency Control (4Hrs.)
Chapter Study
BCA Semester 4 – Database Management System – Unit 9: Transaction and Concurrency Control (4Hrs.)
Comprehensive questions and detailed answers for Unit 9: Transaction and Concurrency Control (4Hrs.). Perfect for exam preparation and concept clarity.
9
Questions
50
Marks
Explain with examples, how lost update and dirty read problems can occur in sentence of transactions?
MediumTHEORY5 marks2020(TU FOHSS Final)
How time stamp ordering protocol is used to ensure concurrency control?
MediumTHEORY5 marks2020(TU FOHSS Final)
How wait-for-graph is constructed? How can you use it to detect deadlock in a schedule of transactions? Support your answer with an example.
MediumTHEORY5 marks2021(TU FOHSS Final)
How read and write operations are performed in a transaction? List the various states where transactions can enter into.
MediumTHEORY5 marks2021(TU FOHSS Final)
What are the states of transaction model? Describe the ACID properties of transaction.
MediumTHEORY5 marks2022(TU FOHSS Final)
Differentiate between stored procedure and trigger. Why concurrency control is needed? Describe timestamp based concurrency protocol.
MediumTHEORY10 marks2022(TU FOHSS Final)
What are the major purposes of concurrency control? Explain two phase locking protocol in detail.
MediumTHEORY5 marks2023(TU FOHSS Final)
What are the major purposes of concurrency control? Explain two phase locking protocol in detail.
MediumTHEORY5 marks2023(TU FOHSS Final)
Write the ACID properties of transactions. Explain the concepts of serializability in database transactions.
MediumTHEORY5 marks2024(TU FOHSS Final)
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Sample Questions
How time stamp ordering protocol is used to ensure concurrency control?
Marks: 5Chapter: Unit 9: Transaction and Concurrency Control (4Hrs.)
How wait-for-graph is constructed? How can you use it to detect deadlock in a schedule of transactions? Support your answer with an example.
Marks: 5Chapter: Unit 9: Transaction and Concurrency Control (4Hrs.)
How read and write operations are performed in a transaction? List the various states where transactions can enter into.
Marks: 5Chapter: Unit 9: Transaction and Concurrency Control (4Hrs.)
What are the states of transaction model? Describe the ACID properties of transaction.
Marks: 5Chapter: Unit 9: Transaction and Concurrency Control (4Hrs.)
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