Explain how the buffer manager may cause the database to become inconsistent if some log records pertaining to a block are not output to stable storage before the block is output to disk.
Answer to relevant QuestionsExplain the benefits of logical logging. Give examples of one situation where logical logging is preferable to physical logging and one situation where physical logging is preferable to logical logging.For each of the following requirements, identify the best choice of degree of durability in a remote backup system:a. Data loss must be avoided but some loss of availability may be tolerated.b. Transaction commit must be ...Suppose you were in charge of the database operations of a company whose main job is to process transactions. Suppose the company is growing rapidly each year, and has outgrown its current computer system. When you are ...When is it useful to have replication or fragmentation of data? Explain your answer.Give an example where lazy replication can lead to an inconsistent database state even when updates get an exclusive lock on the primary (master) copy.
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