When the Sports Physical Therapy database was created, the database designers identified PatientNum and PatientSocialSecurityNumber as candidate
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When the Sports Physical Therapy database was created, the database designers identified PatientNum and PatientSocialSecurityNumber as candidate keys for the Patient table. Why was PatientSocialSecurityNumber not chosen to be the key field of that table?
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The decision to choose PatientNum over PatientSocialSecurityNumber as the key field for the Patient table in the Sports Physical Therapy database coul...View the full answer
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Related Book For
Concepts Of Database Management
ISBN: 9780357422083
10th Edition
Authors: Lisa Friedrichsen, Lisa Ruffolo, Ellen Monk, Joy L. Starks, Philip J. Pratt
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