sql查询出各科成绩最好的学生信息

--查询出各科成绩最好的学生信息 
--自连接 
--SELECT TOP 1 * FROM Score B WHERE B.ScoreName = '数学' ORDER BY B.Score DESC 

SELECT A.ID,U.Name,A.ScoreName,A.Score 
FROM Score A,[User]U 
WHERE UID IN (SELECT TOP 1 UID 
FROM Score B 
WHERE B.ScoreName = A.ScoreName 
ORDER BY B.Score DESC) AND A.UID=U.ID 
ORDER BY A.ScoreName, A.Score DESC