Show minimum and maximum amount of memberships for all branches opened in 2011 or located at city London.
CREATE TABLE branch (membership_amount INTEGER, open_year VARCHAR, city VARCHAR)
SELECT MIN(membership_amount), MAX(membership_amount) FROM branch WHERE open_year = 2011 OR city = 'London'
### Context: CREATE TABLE branch (membership_amount INTEGER, open_year VARCHAR, city VARCHAR) ### Question: Show minimum and maximum amount of memberships for all branches opened in 2011 or located at city London. ### Answer: SELECT MIN(membership_amount), MAX(membership_amount) FROM branch WHERE open_year = 2011 OR city = 'London'