
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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A unique secondary index is created on a
a) non-key, non-ordering attribute of a file
b) non-key, ordering attribute of a file
c) key, non-ordering attribute of a file
d) key, ordering attribute of a file
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