SQL如果连接不匹配然后加入其他东西

措辞不好，因为我对SQL中的这些操作不太熟悉，假设我有一个表的东西分区，另一个表中有一个名为address_state的表。我希望能够加入对ADDRESS_STATE的UCASE等于要么STATE_ABBREVIATION或STATE_NAMESQL如果连接不匹配然后加入其他东西

EG：

SELECT orders.total_value, territories.territory FROM orders 
INNER JOIN tblCanadianTerritories ON 
UCASE(orders.technical_address_state) = tblCanadianTerritories.state 
OR 
tblCanadianTerritories ON 
UCASE(orders.technical_address_state) = tblCanadianTerritories.name 

WHERE UCASE(orders.technical_address_country) = "CANADA"

编辑：

既然来了两个可能的解决方案：

SELECT so_order.id, so_order.date_entered, so_order.check_if_new_customer, tblCanadianTerritories.territory, so_order.total_value FROM so_order 
INNER JOIN tblCanadianTerritories ON 
UCASE(so_order.technical_address_state) = tblCanadianTerritories.state 
OR 
UCASE(so_order.technical_address_state) = tblCanadianTerritories.name 
WHERE UCASE(so_order.technical_address_country) = "CANADA" 
ORDER BY so_order.date_entered ASC

SELECT so_order.id, so_order.date_entered, so_order.check_if_new_customer, 

tblCanadianTerritories.territory, so_order.total_value FROM so_order 
INNER JOIN tblCanadianTerritories ON UCASE(so_order.technical_address_state) = 

tblCanadianTerritories.state 
WHERE UCASE(so_order.technical_address_country) = "CANADA" 
ORDER BY so_order.date_entered ASC 
UNION 
SELECT so_order.id, so_order.date_entered,so_order.check_if_new_customer, 

tblCanadianTerritories.territory, so_order.total_value FROM so_order 
INNER JOIN tblCanadianTerritories ON UCASE(so_order.technical_address_state) = 

tblCanadianTerritories.name 
WHERE UCASE(so_order.technical_address_country) = "CANADA" 
ORDER BY so_order.date_entered;

但他们都似乎检索不同的结果。

来源

2011-04-12 davidahines

你可能有一个错误。您正在使用名为tblCanadianTerritories的表/视图加入名为orders的表/视图。然后你引用一个名为so_order的表/视图。订单和订单是错误的吗？ – 2011-04-12 17:24:44

是的，消毒。 – davidahines 2011-04-12 17:49:46

试试这个：

SELECT orders.total_value, territories.territory 
    FROM orders AS so_order INNER JOIN tblCanadianTerritories 
     ON (
      UCASE(so_order.technical_address_state) = tblCanadianTerritories.state 
      OR 
      UCASE(so_order.technical_address_state) = tblCanadianTerritories.name 
      ) 
WHERE UCASE(so_order.technical_address_country) = "CANADA"

如果你想使用UNION，试试这个：

SELECT orders.total_value, territories.territory 
    FROM orders AS so_order INNER JOIN tblCanadianTerritories 
     ON UCASE(so_order.technical_address_state) = tblCanadianTerritories.state 
WHERE UCASE(so_order.technical_address_country) = "CANADA" 
UNION 
SELECT orders.total_value, territories.territory 
    FROM orders AS so_order INNER JOIN tblCanadianTerritories 
     ON UCASE(so_order.technical_address_state) = tblCanadianTerritories.name 
WHERE UCASE(so_order.technical_address_country) = "CANADA"

来源

2011-04-12 17:18:36 Chandu

工会选择会做同样的事情吗？ – davidahines 2011-04-12 17:19:34

@dah：是的，我使用UNION查询更新了这篇文章。 – Chandu 2011-04-12 17:21:35

@dah在琐碎的情况下是（如在原始问题中），但是如果您的陈述变得更加复杂，则否否 – 2011-04-12 17:22:00

你并不需要一个单独的连接。试试这个：

SELECT o.total_value, territories.territory 
FROM orders AS o 
INNER JOIN tblCanadianTerritories AS ct ON 
UCASE(o.technical_address_state) = ct.state 
OR 
UCASE(o.technical_address_state) = ct.name 
WHERE UCASE(o.technical_address_country) = "CANADA"

（现在的别名）

来源

2011-04-12 17:20:25

我希望我能选择两个答案，这个答案也很棒。有一艘快艇。 – davidahines 2011-04-12 17:43:26

SQL如果连接不匹配然后加入其他东西

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