CREATE TABLE Assessment_Notes (student_id VARCHAR)
CREATE TABLE Students (first_name VARCHAR, student_id VARCHAR)

Find the id and first name of the student that has the most number of assessment notes?
SELECT T1.student_id, T2.first_name FROM Assessment_Notes AS T1 JOIN Students AS T2 ON T1.student_id = T2.student_id GROUP BY T1.student_id ORDER BY COUNT(*) DESC LIMIT 1
SELECT "T1"."student_id", "T2"."first_name" FROM "Assessment_Notes" AS "T1" JOIN "Students" AS "T2" ON "T1"."student_id" = "T2"."student_id" GROUP BY "T1"."student_id" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1