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What is meant by object identifiers? Object-oriented systems use an object identifier to recognize objects. Object identifiers are unique: that is every object has a single ide
Data independence seems that "the application is independent of the access strategy and storage structure of data". In other words, the ability to change the schema definition in o
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
what factors might influence a company to outsource its IT infrascture.
What is an entity relationship model? The entity relationship model is a set of basic objects known as entities and relationship between those objects. An entity is a thing or
HOW TO SOLVE THE LP Problems by simplex method?z=x1+-3x2+2x3
A distributed transaction consists of subtransactions that execute at different sites and access local DBMSs at those sites. For example, a distributed transaction that transfers m
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aggregation
explain at least five widly used case tools
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