第一种方式:(子查询方式)
select * from duration where account_idAccount= any(select account.idAccount from account where account.user_idUser= any(select user.idUser from user where user.userName= ?))
第二种方式:(join方式)
select duration.*from duration inner join account,user where duration.account_idAccount=account.idAccount and account.user_idUser=user.idUser and userName=?