dblabs/n.sql
2024-01-25 21:55:48 +01:00

12 lines
No EOL
467 B
SQL

--Which student has the highest grade average? Advice: define and use a view that
--gives the person number and grade average for each student.
DROP VIEW IF EXISTS StudentsAverages;
CREATE VIEW StudentsAverages AS
SELECT Students.firstName, Students.pNbr, TakenCourses.grade, avg(grade) as averageGrade
FROM Students
JOIN TakenCourses ON Students.pNbr = TakenCourses.pNbr
GROUP BY Students.pNbr;
SELECT firstName, max(averageGrade) FROM StudentsAverages