In multiple-granularity locking, what is the difference between implicit andexplicit locking?
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Q: Database system implementations often use strict two-phase locking. Why are this protocol's uses and…
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Q: A foreign key must not be null under what circumstances?
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Q: Explain the distinction between an explicit and an implicit lock.
A: Given: Explain the distinction between an explicit and an implicit lock.
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Q: What is the distinction between optimistic and pessimistic locking?
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Q: What is the distinction between the two kinds of integrity constraints?
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Q: What is the difference between implicit and explicit locking in multiple-granularity locking?
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Q: Explain two-phase locking.
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Q: In multiple-grain locking, SIX mode is useful, but an exclusive and intention-shared (XIS) mode is…
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- Although SIX mode is useful in multiple-granularity locking, an exclusive and intention-shared (XIS) mode is of no use. Why is it useless?Exclusive and intention-shared (XIS) mode is completely ineffectual for multiple-granularity locking, notwithstanding the advantages of the SIX mode. So, why is it pointless?Although the SIX mode is beneficial in multiple-granularity locking, the exclusive and intention-shared (XIS) mode is completely ineffective. What makes it ineffective?
- What is the advantage of two-phase locking? What repercussions does this have?What happens if an assault is made on the database's referential integrity? Is it possible to make these blunders?Exclusive and intention-shared (XIS) mode is completely ineffectual for multiple-granularity locking, notwithstanding the advantages of the SIX mode. Why is it pointless, exactly?