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a . It is a variable for holding database relation data, not the relation itself. b . It has an attribute with a value that
a It is a variable for holding database relation data, not the relation itself.
b It has an attribute with a value that determines the value of other rows.
c An index is an orderly arrangement used to physically access rows in a table.
d An index is an orderly arrangement used to logically access rows in a table.
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Modern Database Management
Authors: Jeffrey A. Hoffer Fred R. McFadden
9th Edition
B01JXPZ7AK, 9780805360479
