What is the last name of the professor whose office is located in DRE 102, and when were they hired?
SELECT T1.emp_lname ,  T1.emp_hiredate FROM employee AS T1 JOIN professor AS T2 ON T1.emp_num  =  T2.emp_num WHERE T2.prof_office  =  'DRE 102'
last name of the professor refers to emp_lname; office located in DRE 102 refers to prof_office = 'DRE 102'; when were they hired refers to emp_hiredate;