1，使用rownum
SELECT * FROM ( SELECT A.*, ROWNUM RN FROM (SELECT * FROM TABLE_NAME) A WHERE ROWNUM <= 40 ) WHERE RN >= 21
2，使用between
SELECT * FROM ( SELECT A.*, ROWNUM RN FROM (SELECT * FROM TABLE_NAME) A ) WHERE RN BETWEEN 21 AND 40
原文：http://www.cnblogs.com/pingh/p/3756113.html