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Ask questiwhat is row indicator in database on #Minimum 100 words accepted#
WHAT IS DATABASE TECHNOLOGIES
Explain the Aggregation implies concurrency Concurrency actually is: This in objects can be identified by the way they change state. Present objects can change state independen
What is nested relational model? The nested relational model is an extension of relational model in which domains might be either atomic or relation valued.
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
Consider the join of a relation R with relation S. If R has m tuples and S has n tuples, then the maximum size of join is: If R has m tuples and S has n tuples then maximum siz
What are the General Transformation Rules for Relational operations? Ans: The transformation rules transform one relational algebra expression to AN EQUIVALENT ONE 1. E
Lack of Redundancy We have talked about the problems of repetition of information in a database. Such repetition should be stay away as much as possible. Let us state once again t
Define Fifth Normal form is concerned with Ans : Fifth Normal form is concerned with Join dependency.
define locking in simple language and decribed it
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