Consider the following two relations for Millennium College:STUDENT(StudentiD StudentName,CampusAddress, GPA)REGISTRATION(Student!D CourseiD Grade)Following is a typical query against these relations:SELECT Student_T.StudentiD, StudentName,CourseiD, GradeFROM Student_T, Registration_TWHERE Student_T.StudentiD =Registration_ T.StudentiDANDGPA>3.0ORDER BY Student Name;a. On what attributes should indexes be defined to speedup this query? Give the reasons for each attributeselected.b. Write SQL commands to create indexes for each attribute you identified in part a.

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
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Consider the following two relations for Millennium College:
STUDENT(StudentiD StudentName,
CampusAddress, GPA)
REGISTRATION(Student!D CourseiD Grade)
Following is a typical query against these relations:
SELECT Student_T.StudentiD, StudentName,
CourseiD, Grade
FROM Student_T, Registration_T
WHERE Student_T.StudentiD =
Registration_ T.StudentiD
ANDGPA>3.0
ORDER BY Student Name;
a. On what attributes should indexes be defined to speed
up this query? Give the reasons for each attribute
selected.
b. Write SQL commands to create indexes for each attribute you identified in part a.

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