你那个and d.b_id=b.b_id是不是写错地方了??第一个inner join 后面为什么没有on??
select c.name, c.bank_name, d.amount from deposite d inner join customer c on d.c_id = c.c_id inner join bank b on d.b_id = b.b_id where
where后跟上你的条件