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The data of a view is not physically stored, but derived from one or more tables.
True the data of a view is not physically stored
losers with new information systems
Why is database design important?
Lack of standards and experience: The lack of standards has considerably limited the potential of distributed DBMSs. As well, there are no tools or methodologies to help users cha
The Third Normal Form (3NF) Even though, transforming a relation that is not in 2NF into a number of relations that are in 2NF take out many of the anomalies, it does not neces
sql is relationally complete-justify
What are composite attributes? Composite attributes can be separated in to sub parts.
For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
Use inheritance as an implementation technique when you are going to use inheritance as an implementation technique, you can achieve same goal in a safer way by making one cla
Define a view and a trigger. Construct a view for the above relations that have the information about suppliers and the elements they supply. The view holds the S#, SNAME, P# , PNA
What is aggregate function? Briefly describe it? Aggregate functions are functions that take a collection of values as input and return a one value. SQL offers 5 built-in aggre
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