CREATE TABLE member (name VARCHAR2, member_id VARCHAR2, Membership_card VARCHAR2, age VARCHAR2)

Find the ids and names of members who are under age 30 or with black membership card.
SELECT name, member_id FROM member WHERE Membership_card = 'Black' OR age < 30
SELECT "name", "member_id" FROM "member" WHERE "Membership_card" = 'Black' OR "age" < 30