tsq - 获取重复行中的最高int

Question

我在表格中有以下行

name, tagid
-------
test1,1
test1,100
test2,2
test2,200
test3,3
test3,300

名称中有重复项。 有没有办法通过获取每个组的最高tagid来选择唯一名称？

Answer 1

;WITH cte AS
(
   SELECT *, ROW_NUMBER() OVER (PARTITION BY name ORDER BY tagid DESC) AS rn
   FROM table_1
)
SELECT *
FROM cte
WHERE rn = 1

Answer 2

select name,max(tagid) as highest_tagid
from tbl
group by name