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Explain current page table and shadow page table.
The key idea behind the shadow paging method is to maintain two page tables during the life of the transaction: the current page table and the shadow page table. Both the page tables are identical when the transaction begins. The current page table might be changed when a transaction performs a write operation.
Define Assertions in SQL a. An assertion is a predicate that is expressing a condition we wish the database to always satisfy. b. Domain constraints, functional dependency
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(a) Explain the three types of potential mistake which could occur if concurrency control is not properly enforced in the database system. Support your answer with appropriate ex
job scheduling for different cubes
Describe the candidate key functions ? Candidate Key and Alternate Key: In some instances, an entity will have more than one attribute which can serve as a primary key. Any key
Question 1: (a) Planning and management of ICT projects have a very poor record in developing countries. Briefly explain five critical success factors for correct implementa
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Removing a Synonym: DROP SYNONYM D30;
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