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What are called multilevel indices?
Indices with two or more levels are known as multilevel indices.
Differentiate between Key and superkey? Key and superkey - A key a single attribute or a combination of two or more attributes of an entity set in which is used to identify o
List some instances of collection types? a) sets b) arrays c) multisets
Define decision tree classifiers? As the name suggests decision tree classifiers use a tree: Every leaf node has an associated class, and every internal node has a predicate as
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
Define rotational latency time. The time spent waiting for the sector to be accessed to appear under the head is known as the rotational latency time.
Gyan Gurukul is a software company that provides software related solution. Ashutosh Dubey who is the director of Gyan Gurukul want a three-level schema architecture for the Gyan G
Probelm: (a) A distributed database (DDB) is a collection of multiple, logically interrelated databases which are physically distributed over a computer network" (i) Give a
Define Timestamp ordering Ans In timestamp-based method, a serial order is made among the concurrent transaction by assigning to every transaction a unique nondecreasing number
What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
cardnality ratio for humanresource mangement system
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