如何从mysql中的不同状态的同一表中选择数据？

Question

我有一个这样的桌子。

我想选择随机10非花哨suite_number 和随机10花哨suite_number。现在我使用两个查询来做到这一点。 我可以做一个查询吗？ 如何从mysql中的不同状态的同一表中选择数据？

Answer 1

如何：

(SELECT suite_number 
    FROM tbl_name 
    WHERE is_fancy = 0 
ORDER BY RAND() 
    LIMIT 10 
) UNION ALL 
(SELECT suite_number 
    FROM tbl_name 
    WHERE is_fancy = 1 
ORDER BY RAND() 
    LIMIT 10) 
ORDER BY RAND() 

最后一行ORDER BY RAND()是可选的。

Answer 2

SELECT suite_number 
FROM my_table 
WHERE is_fancy = '1' 
ORDER BY RAND() 
LIMIT 10 
UNION 
SELECT suite_number 
FROM my_table 
WHERE is_fancy = '0' 
ORDER BY RAND() 
LIMIT 10