Mysql查询不显示值不相等的行

Question

我的mysql查询有一些小问题。我想只显示订单状态不同于6的行。但id_order有多个雕像，意思是：

id_order = 8421
**has two statuses:**
id_order_state=8 and
id_order_state = 6.

这是我的表格示例：link

我尝试过：

SELECT * FROM order_history WHERE id_order_state != 6 (but here I need more code that I can't handle)

感谢您的帮助

编辑：订单8421,8422不应显示在结果

中

Answer 1

试试这个

> SELECT * FROM order_history WHERE id_order_state <> 6

或

> SELECT * FROM order_history WHERE id_order_state NOT IN ( 6)

Answer 2

尝试：

SELECT i.* FROM order_history i
left join order_history e 
       on i.id_order = e.id_order and e.id_order_state = 6
WHERE  e.id_order_hitory is null

Answer 3

就像这样？

SELECT * 
FROM order_history 
WHERE id_order NOT IN 
(SELECT id_order FROM order_history WHERE id_order_state = 6);