SQL查询帮助（ObjectPropertyvalue）

Question

[！[输入图像描述] [1]] [1]我需要以下查询的帮助。

select * 
from xr.ObjectPropertyvalue 
where objectid in (
    select objectid 
    from xr.objectpropertyvalue 
    where endversion in 
      (select max(endversion) 
       from xr.ObjectPropertyValue 
       group by objectid having count(endversion) > 1 
    ) 
) 

我想要做的是在表上找到最高版本和objectid唯一的条目。

Ex. 
    Object id 1's highest version = 3 
    Object id 2 highest version =4 

任何帮助，将不胜感激。

Answer 1

如果我理解正确的话，您可以尝试此查询（未测试，我没有现在的SQL服务器环境）

WITH cte AS (
    SELECT *, rn = ROW_NUMBER() OVER(PARTITION BY objectid ORDER BY endversion DESC) 
    FROM xr.ObjectPropertyvalue 
) 
SELECT * 
FROM cte c 
WHERE c.rn = 1 
AND EXISTS (SELECT 1 FROM cte c2 WHERE c2.objectid = c.objectid AND c2.rn = 2) 
ORDER BY c.objectid