Question: Excellent!  Can you update that list to include the customer names and their account balances?
SQL: SELECT T1.cust_id,T1.cust_name,T1.acc_bal FROM customer AS T1 JOIN loan AS T2 ON T1.cust_id   =   T2.cust_id GROUP BY T1.cust_name HAVING sum ( T2.amount )    > =    5000