Show member names that are not in the Progress Party.
create table party (party_id varchar, party_name varchar, PRIMARY KEY (party_id)); create table member (member_name varchar, party_id varchar, PRIMARY KEY (member_name))
select t1.member_name from member as t1 join party as t2 on t1.party_id = t2.party_id where t2.party_name <> "progress party"