CREATE TABLE Employees (employee_id VARCHAR(255), role_code VARCHAR(255)); CREATE TABLE ROLES (role_code VARCHAR(255), role_name VARCHAR(255))
Show the employee ids for all employees with role name "Human Resource" or "Manager".
    
SQL: SELECT T1.employee_id FROM Employees AS T1 JOIN ROLES AS T2 ON T1.role_code = T2.role_code WHERE T2.role_name = "Human Resource" OR T2.role_name = "Manager"