Joining tables based on the maximum value

Question

Here\'s a simplified example of what I\'m talking about:

Table: students      exam_results
_____________       ____________________________________
| id | name |         


        

Answer 1

SELECT s.name,
    COALESCE(MAX(er.score), 0) AS high_score
FROM STUDENTS s
    LEFT JOIN EXAM_RESULTS er ON er.student_id = s.id
GROUP BY s.name