Question: Thank you. Then could you please let me know what would be the difference between the balances of the two accounts?
SQL: SELECT T3.balance - T2.balance FROM accounts AS T1 JOIN checking AS T2 ON T1.custid   =   T2.custid JOIN savings AS T3 ON T1.custid   =   T3.custid WHERE T3.balance  >   ( SELECT avg ( balance )  FROM savings )