Assume that the student table in the database of a university contains indexes on StudentID, which serves as the primary key, as well as Major, Age, MaritalStatus, and HomeZipCode (all secondary keys). Assume that the university needed a list of students who were over the age of 25, married, and from the 45462 zip code to major in MIS or computer science OR students who were majoring in computer engineering and were single and from the 45462 zip code to major in computer engineering. How can indexes be used to make sure that only entries that fulfill these requirements be accessible when they are needed?

A Guide to SQL
9th Edition
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Philip J. Pratt
Chapter2: Database Design Fundamentals
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Assume that the student table in the database of a university contains indexes on StudentID, which serves as the primary key, as well as Major, Age, MaritalStatus, and HomeZipCode (all secondary keys). Assume that the university needed a list of students who were over the age of 25, married, and from the 45462 zip code to major in MIS or computer science OR students who were majoring in computer engineering and were single and from the 45462 zip code to major in computer engineering. How can indexes be used to make sure that only entries that fulfill these requirements be accessible when they are needed?

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