Question

我想为他们的playerRole专栏获得3个不同的玩家。我正在使用

SELECT TOP 1 * FROM FantasyPlayers WHERE playerRole = 1 ORDER BY NEWID()

查询获取playerRole = 1的随机行

但是我想得到

SELECT TOP 1 * FROM FantasyPlayers WHERE playerRole = 1 ORDER BY NEWID()

SELECT TOP 1 * FROM FantasyPlayers WHERE playerRole = 2 ORDER BY NEWID()

SELECT TOP 1 * FROM FantasyPlayers WHERE playerRole = 3 ORDER BY NEWID()

3个具有3个不同角色的随机玩家，这意味着每个玩家角色有1个随机玩家。

我尝试了由于NEWID（）

而没有返回任何内容的Union

感谢任何帮助

由于

Answer 1

...也许

WITH CTE AS(
    SELECT *,
           ROW_NUMBER() OVER (PARTITION BY playerRole
                              ORDER BY NEWID()) AS RN
    FROM FantasyPlayers)
SELECT *
FROM CTE
WHERE RN = 1;

Answer 2

您也可以在没有子查询的情况下执行此操作：

select top (1) with ties fp.*
from FantasyPlayers fp
order by row_number() over (partition by playerRole order by newid();

每种列类型的SQL Server随机行

2 个答案: