Database: insurance_policies
Question: Which customer had at least 2 policies but did not file any claims? List the customer details and id.
SQL: select t1.customer_details ,  t1.customer_id from customers as t1 join customer_policies as t2 on t1.customer_id  =  t2.customer_id group by t1.customer_id having count(*)  >=  2 except select t1.customer_details ,  t1.customer_id from customers as t1 join customer_policies as t2 on t1.customer_id  =  t2.customer_id join claims as t3 on t2.policy_id  =  t3.policy_id