说一下mysql, oracle等常见数据库的分页实现方案

说一下mysql, oracle等常见数据库的分
页实现方案
1.Oracle:select * from ( select row_.*, rownum rownum_ from ( query_SQL ) row_ where rownum == min
2.SQL Server:select top @pagesize * from tablename where id not in (select top @pagesize*(@page-1) id from tablename order by id) order by id
3.MySQLselect * from tablename limit position, counter
4.DB2select * from (select *,rownumber() as ROW_NEXT from tablename) where ROW_NEXT between min and max——————————————————————————————–1.分页方案一：(利用Not In和SELECT TOP分页)效率次之语句形式：SELECT TOP 10 * FROM TestTableWHERE(ID NOT IN (SELECT TOP 20 id FROM TestTable ORDERBY id)) ORDERBYIDSELECT TOP 页大小* FROM TestTableWHERE( ID NOT IN (SELECT TOP 每页大小-1*待查询页数-1 id FROM 表ORDERBY id)) ORDERBYID思路:先查询出待查询页之前的全部条数的id,查询ID不在这些ID中的指定数量条数2.分页方案二：(利用ID大于多少和SELECT TOP分页)效率最高语句形式：SELECT TOP 10 * FROM TestTableWHERE(ID>(SELECT MAX(id) FROM(SELECT TOP20 id FROM TestTable ORDERBYid)AS
T))ORDERBY IDSELECT TOP 页大小* FROM TestTableWHERE(ID>(SELECT MAX(id) FROM(SELECT TOP 每页大小*待查询页数-1 id FROM 表ORDERBY id)AS T)) ORDERBY ID思路:先获得待查询页的之前全部条数id,获得它们当中最大的ID 号,以此最大ID号为标志,查找比这个ID号大的指定条数3.分页方案三：SELECT TOP PageSize * FROM(SELECT TOP nPage*PageSize * from YOURTABLE order by id)as a order by id descSELECT TOP 每页条数* FROM (SELECT TOP 待查询页*每页条数) * from YOURTABLE order by id)as a order by id desc思路:先正排序查询出待查询页之前(包括当前页)的全部条数,然后将其倒排序,取指定条数。