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

With Oracle's analytic functions this is easy:

SELECT DISTINCT
       students.name
      ,FIRST_VALUE(exam_results.score)
       OVER (PARTITION BY students.id
             ORDER BY exam_results.score DESC) AS score
      ,FIRST_VALUE(exam_results.date)
       OVER (PARTITION BY students.id
             ORDER BY exam_results.score DESC) AS date
FROM   students, exam_results
WHERE  students.id = exam_results.student_id;