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Define the notation for classes and atrributes
The notation for class, attribute, and operations are shown below:
Figure: Class with attributes and operations
An interface is a set of operations which are used to specify a service of a class or a component.
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In the architecture of a database system which external level used? In the architecture of a database system view external level used.
Explain three main attributes of data.
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what are the purposes of dbms in details
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