mysql - 在 MySQL 中合并两个具有不同 WHERE 的 SELECT

Question

有没有办法合并这两个查询？

SELECT * FROM OFF WHERE New = 0 AND Saw = 1 AND El = 0
SELECT * FROM OFF WHERE New = 1 AND Saw = 0 AND El = 0

如果我使用这个查询：

SELECT * FROM OFF WHERE New = 0 AND Saw = 1 AND El = 0 AND New = 1 AND Saw = 0 AND El = 0

我显然有其他预期的结果。

谢谢！

Answer 1

OR在对这些条件进行分组时使用，

SELECT * 
FROM   `OFF`
WHERE  (New = 0 AND Saw = 1 AND El = 0) OR 
       (New = 1 AND Saw = 0 AND El = 0)

Answer 2

您始终可以使用 UNION 合并任意两个查询

(SELECT * FROM OFF WHERE New = 0 AND Saw = 1 AND El = 0)
UNION
(SELECT * FROM OFF WHERE New = 1 AND Saw = 0 AND El = 0)