Give the address of the staff member who has the first name Elsa.
SELECT T2.address FROM staff AS T1 JOIN address AS T2 ON T1.address_id  =  T2.address_id WHERE T1.first_name  =  'Elsa'
address of the staff member = T2.address; staff member with the first name Elsa refers to WHERE T1.first_name = 'Elsa'; JOIN is used to combine rows from two or more tables based on a related column between them.