alter table users alter column city drop default; alter table users alter column first_name drop default; alter table users alter column last_name drop default; alter table users alter column birth_date drop default; alter table users alter column birth_date drop not null; update users set state = 'NC'; alter table users alter column state set not null; update users set country = 'USA'; alter table users alter column country set not null; alter table bands alter column city drop default; update users set state = 'NC'; alter table bands alter column state set not null; update users set country = 'USA'; alter table bands alter column country set not null; --alter table users drop column account_id; --drop table accounts;