Teradata 从表中为不同的变量取相同的值

我正在使用Teradata和SQL，但遇到了一个问题。 我有一个订单号，我可以有两个不同的付款人，一个用于运输，一个用于产品和税收。 我想从订单号中找到付款人的账号和付款人的姓名

订单号和账号可以在一个表中找到，然后名称和账号可以在另一个表中找到

现在我有这个,

Sellect a.order_num,
a.account_ship,
a.account_tax ||' ('||b.account_name||')' as Tax_account_name

from order a 
inner join account b
on a.account_tax = b.account_number
where a.order_num in ('1');

我希望能够以与税务帐户相同的方式显示发货帐户的帐户名。 有人知道吗

对不起，如果这个问题是一个问题，但令人困惑

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谢谢，

您需要另一个连接到accounts表以获取装运帐号：

Select o.order_num,
   o.account_ship,
   o.account_tax ||' ('||tax.account_name||')' as Tax_account_name
   o.account_ship ||' ('||ship.account_name||')' as Shipment_account_name
from order as o 
join account as tax  -- tax account
  on o.account_tax = tax.account_number
join account as ship -- shipment account
  on o.account_ship = ship.account_number
where o.order_num in ('1');

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您需要另一个连接到装运帐号的accounts表：

Select o.order_num,
   o.account_ship,
   o.account_tax ||' ('||tax.account_name||')' as Tax_account_name
   o.account_ship ||' ('||ship.account_name||')' as Shipment_account_name
from order as o 
join account as tax  -- tax account
  on o.account_tax = tax.account_number
join account as ship -- shipment account
  on o.account_ship = ship.account_number
where o.order_num in ('1');

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工作完美！谢谢工作完美！谢谢