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(*)  >  1
Find the the customer details and id for the customers who had more than one policy.
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 ( * ) > 1
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 ( * ) > value
Find the the customer details and id for the customers who had more than one policy .