Question

是否可以进行查询，选择一条具有player_type＆＃39; IF＆＃39;和10个具有player_type＆＃39; Gold＆＃39;由卡规订购的＃39; field / rand（）desc？谢谢。下面是我的表的一些附加屏幕截图，显示了一些player_type＆＃39; IF＆＃39;和＆＃39; Gold＆＃39;记录。

Records with player_type as 'IF'

Records with Player Type as 'Gold'

基本上，我想结合

SELECT * 
FROM  `my_players` 
WHERE  `player_type` =  'Gold'
ORDER BY cardweight / RAND( ) DESC 
LIMIT 0 , 10

和

    SELECT * 
FROM  `my_players` 
WHERE  `player_type` =  'IF'
ORDER BY cardweight / RAND( ) DESC 
LIMIT 0 , 1

在一个查询中，如果可能的话，可以立即运行。

Answer 1

您使用union all：

(SELECT * 
FROM  `my_players` 
WHERE  `player_type` =  'Gold'
ORDER BY cardweight / RAND( ) DESC 
LIMIT 0 , 10)
UNION ALL
(SELECT * 
FROM  `my_players` 
WHERE  `player_type` =  'IF'
ORDER BY cardweight / RAND( ) DESC 
LIMIT 0 , 1)

Answer 2

你可以做一个UNION：

SELECT * 
FROM  `my_players` 
WHERE  `player_type` =  'Gold'
ORDER BY cardweight / RAND( ) DESC 
LIMIT 0 , 10

UNION

SELECT * 
FROM  `my_players` 
WHERE  `player_type` =  'IF'
ORDER BY cardweight / RAND( ) DESC 
LIMIT 0 , 1

多选查询MySQL

2 个答案: