Task: Text to Code
Input (English): SQL: SELECT name FROM instructor GROUP BY name HAVING Count ( * ) > 1
Feedback: Use student id in advisor table instead of name in instructor table in step 1.
Output (English): SELECT T1.name FROM instructor AS T1 JOIN advisor AS T2 ON T1.id  =  T2.i_id GROUP BY T2.i_id HAVING count(*)  >  1