1)查询1-4的数据 SELECT rownum, sno, cno, score FROM (SELECT * FROM sc order by score desc) WHERE rownum < 4 2)查询2-5行的数据 SELECT rn, sno, cno, score FROM (SELECT rownum rn, sno, cno, score FROM (SELECT * FROM sc order by score desc)) WHERE rn > 2 and rn &l…