CREATE TABLE department (dept_code VARCHAR(255), dept_name VARCHAR(255)); CREATE TABLE professor (dept_code VARCHAR(255))
How many professors who are from either Accounting or Biology department?
    
SQL: SELECT COUNT(*) FROM professor AS T1 JOIN department AS T2 ON T1.dept_code = T2.dept_code WHERE T2.dept_name = 'Accounting' OR T2.dept_name = 'Biology'