oracle, Database Management System

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comparison of oracle RDBMS with MySQL

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Explain how the associations are implemented as classes. A general approach in this case is to transform an association class into a simple class linked to two original classes

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The External or View Level The external or view level is the highest level of abstraction of database. It gives a window on the conceptual view, which permits the user to see

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Sparse and Dense Indexes These indexes in principle are the similar as that of indexes used at the back of the book. The key facts of the indexes are: They are arranged

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