sql查找指定字段最大值（或最小值）的某一行数据

---------------------------查找最大值-------------------------------------
SELECT T.*
FROM JO_USER T
WHERE T.LOGIN_COUNT = (SELECT MAX(T.LOGIN_COUNT) FROM JO_USER T);
---------------------------查找最小值-------------------------------------
SELECT T.*
FROM JO_USER T
WHERE T.LOGIN_COUNT = (SELECT MIN(T.LOGIN_COUNT) FROM JO_USER T);