What are the names of members and their corresponding parties?
SELECT T1.member_name ,  T2.party_name FROM Member AS T1 JOIN party AS T2 ON T1.party_id  =  T2.party_id
names of members = T1.member_name; their corresponding parties = T2.party_name; JOIN is used to combine rows from two or more tables based on a related column between them, here based on party_id.