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In the movie ER model above, we focus on the binary relationship 'PRODUCES'. Suppose we add an attribute type that indicates the time that each
In the movie ER model above, we focus on the binary relationship 'PRODUCES'. Suppose we add an attribute type that indicates the time that each producer spent on producing each movie called 'WORKING HOURS'. Which of the following scenarios is possible?
We can migrate the attribute type 'WORKING HOURS' to the 'MOVIE' entity type.
We can migrate the attribute type 'WORKING HOURS' to the 'PRODUCER' entity type.
We can migrate the attribute type 'WORKING HOURS' to either one of the linked entity types.
We can add the attribute type 'WORKING HOURS' to the relationship type PRODUCES.
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Database Security XI Status And Prospects
Authors: T.Y. Lin, Shelly Qian
1st Edition
0412820900, 978-0412820908
