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A(n) is a field that contains unique data for each record in the table but is not used as the primary key field for security or other reasons candidate key .a O associate key b O backup key .c O secondary key do

A(n) is a field that contains unique data for each record in the table but is not used as the primary key field for security or other reasons candidate key .a O associate key b O backup key .c O secondary key do

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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A(n). is a field that contains unique data for each record in the table but is not used as the primary .key field for security or other reasons candidate key a associate key b O backup key .c O secondary key dO
Transcribed Image Text:A(n). is a field that contains unique data for each record in the table but is not used as the primary .key field for security or other reasons candidate key a associate key b O backup key .c O secondary key dO
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