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Differentiate sub-class and super-class?
The specialization of a class is known as subclasses.eg: employee is a subclass of person and teller is a subclass of employee. Conversely, employee is a super class of teller, and person is a super class of employee.
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
(a) Why did SAP introduce the extended star schema?
HOW MANY TYPES OF VIEWS
how can apply joins on table
Critically evaluate the bulleted list of information-related items in this case study. How are each contradictory to the notion of being an information-literate knowledge worker?
diagrams and meaning
differences between a classified catalog and a dictionary catalog
Problem : (b) A deductive database system is essentially the outcome of applying mathematics logic to database management, where logic is used for both data representation and
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
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