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Illustrate how you can use QBE to perform logical AND and OR operation
Inheritance Adjustment As in object oriented analysis and design terms inheritance defines a relationship between classes, where as one class shares structure or behaviour def
The scenario You have been approached to design and implement a prototype of a distributed information system for a national car part retail outlet chain. The company comprises
Explain the challenges before an E-business management.
explain normalisation
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
what is cascading? what is rollback cascading? please explain in detail
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
Selective replication: This is a combination of generating small fragments of relation and replicating them rather than a entire relation. The data should be fragmented on require
Insulation between conceptual and physical structures It can be defined as: 1. The Database Administrator should be capable to vary the storage structures without affectin
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