What are the names and account balances of customers with the letter a in their names?
SELECT cust_name ,  acc_bal FROM customer WHERE cust_name LIKE '%a%'
SELECT cust_name ,  acc_bal FROM customer WHERE cust_name LIKE '%a%'
[{'cust_name': 'Mary', 'acc_bal': 2000}, {'cust_name': 'Jack', 'acc_bal': 1000}]