database models, Database Management System

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why are older data models are being replaced by new data models

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Attribute, a set of possible data value of an attribute is called??

a set of possible data value of an attribute is called??

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What is a view? A view is a logical view on one or more tables.  A view on one or more tables i.e., the data from a view is not actually physically kept instead being derived f

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Differentiate between a subquery and a join If we need to acquire information from one or more tables after that either subquery or join can be used. If the columns which are t

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