CREATE TABLE member (member_id NUMBER, card_number CLOB, name CLOB, hometown CLOB, level NUMBER)
CREATE TABLE membership_register_branch (member_id NUMBER, branch_id CLOB, register_year CLOB)
CREATE TABLE purchase (member_id NUMBER, branch_id CLOB, year CLOB, total_pounds NUMBER)
CREATE TABLE branch (branch_id NUMBER, name CLOB, open_year CLOB, address_road CLOB, city CLOB, membership_amount CLOB)

List the branch name and city without any registered members.
SELECT name, city FROM branch WHERE NOT branch_id IN (SELECT branch_id FROM membership_register_branch)
SELECT "name", "city" FROM "branch" WHERE NOT "branch_id" IN (SELECT "branch_id" FROM "membership_register_branch")