How many different professors are there for the different schools?
SELECT count(*) ,  T1.school_code FROM department AS T1 JOIN professor AS T2 ON T1.dept_code  =  T2.dept_code GROUP BY T1.school_code
SELECT count(*) ,  T1.school_code FROM department AS T1 JOIN professor AS T2 ON T1.dept_code  =  T2.dept_code GROUP BY T1.school_code
[{'count(*)': 12, 'SCHOOL_CODE': 'A&SCI'}, {'count(*)': 10, 'SCHOOL_CODE': 'BUS'}]