CREATE TABLE payments (payment_id NUMBER, settlement_id NUMBER, payment_method_code CLOB, date_payment_made TIME, amount_payment NUMBER)
CREATE TABLE claims (claim_id NUMBER, policy_id NUMBER, date_claim_made TIME, date_claim_settled TIME, amount_claimed NUMBER, amount_settled NUMBER)
CREATE TABLE customer_policies (policy_id NUMBER, customer_id NUMBER, policy_type_code CLOB, start_date TIME, end_date TIME)
CREATE TABLE settlements (settlement_id NUMBER, claim_id NUMBER, date_claim_made TIME, date_claim_settled TIME, amount_claimed NUMBER, amount_settled NUMBER, customer_policy_id NUMBER)
CREATE TABLE customers (customer_id NUMBER, customer_details CLOB)

Among all the claims, which settlements have a claimed amount that is no more than the average? List the claim start date.
SELECT date_claim_made FROM claims WHERE amount_settled <= (SELECT AVG(amount_settled) FROM claims)
SELECT "date_claim_made" FROM "claims" WHERE "amount_settled" <= (SELECT AVG("amount_settled") FROM "claims")