human
Schema:
Accounts (account_id, customer_id, account_name, other_account_details)
Customers (customer_id, customer_first_name, customer_last_name, customer_address, customer_phone, customer_email, other_customer_details)
Customers_Cards (card_id, customer_id, card_type_code, card_number, date_valid_from, date_valid_to, other_card_details)
Financial_Transactions (transaction_id, previous_transaction_id, account_id, card_id, transaction_type, transaction_date, transaction_amount, transaction_comment, other_transaction_details)
Please answer with SQL.
assistant
Sure, I understand.
human
What are the first and last names of all customers who don't have an account?
assistant
SELECT customer_first_name , customer_last_name FROM Customers EXCEPT SELECT T1.customer_first_name , T1.customer_last_name FROM Customers AS T1 JOIN Accounts AS T2 ON T1.customer_id = T2.customer_id ;