Mysql 从子查询函数返回2个值

下面是我用来得到两个答案之一的代码。我只是想知道是否有可能以某种方式得到多个答案？

首先，您不需要

from

子句中的

deltakelse

表。如果没有这一点，您可能可以摆脱

独特的

您的问题的答案是将
=
中的
更改为
：

SELECT DISTINCT 
    utover.startnr, utover.navn
FROM 
    utover, deltakelse
WHERE 
    utover.startnr = (SELECT utover
                      FROM deltakelse
                      GROUP BY utover
                      HAVING COUNT(*) = (SELECT COUNT(*)
                                         FROM deltakelse
                                         GROUP BY utover
                                         ORDER BY COUNT(*) DESC 
                                         LIMIT 1)
                      LIMIT 1);

请提供样本数据和预期结果。在解释你要找的东西时，你的询问并不能公正地解释你的问题。
SELECT utover.startnr, utover.navn
FROM utover
WHERE utover.startnr in (SELECT utover
                         FROM deltakelse
                         GROUP BY utover
                         HAVING COUNT(*) = (SELECT COUNT(*)
                                            FROM deltakelse
                                            GROUP BY utover
                                            ORDER BY COUNT(*) DESC
                                            LIMIT 1
                                           )
                        );