MYSQL、ORACLE、SQLSERVER获取行号，增量查询

oracle
select * from (
select rownum as rn,HDMS.HD_PURGE_STATUS.* from HDMS.HD_PURGE_STATUS
where rownum <=20) where rn>10 and rn<=20;

SqlServer
select * from (
select * from (select row_number()over(order by tempcolumn)temprownumber,* from
 (select top 8 tempcolumn=0,* from testdm.dbo.books)t
 )tt where temprownumber>2) YY;
 
MySQL
select * from sakila.actor limit 10,10;
数据量大时，2个参数limit性能有影响，用如下：vid是表中一列
Select * From yanxue8_visit Where vid >=(
Select vid From yanxue8_visit Order By vid limit 10,1
) limit 10