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What are called multilevel indices?
Indices with two or more levels are known as multilevel indices.
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
Dependency Preservation It is obvious that the decomposition must be lossless so that we do not lose any information from the relation that is decomposed. Dependency preservati
What is a database graph? The partial ordering implies that the set D may now be viewed as a directed acyclic graph, known as a database graph.
under what condition log based recovery is feasible?
Explain the Concept of Two-phase Locking It concerns the positions of locking and unlocking operations in each transaction. In this protocol every transaction issue lock and u
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
data models are being replaced over years. Reasons and why does that happen?
What is meant by software and hardware RAID systems? RAID can be executed with no change at the hardware level, using only software modification. Such RAID implementations are
what are the limitations of dbms?
sql is relationally complete-justify
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