SELECT T1.name FROM accounts AS T1 JOIN checking AS T2 ON T1.custid = T2.custid WHERE T2.balance < (SELECT AVG(balance) FROM checking)
Temukan nama akun yang saldo giro di bawah saldo giro rata -rata.
CREATE TABLE accounts (name VARCHAR, custid VARCHAR); CREATE TABLE checking (balance INTEGER); CREATE TABLE checking (custid VARCHAR, balance INTEGER)