MSSQL：
select * from ( select TOP size * FROM ( SELECT TOP (start*size) * from table_name ORDER BY BY id ASC ) as aSysTable ORDER BY id DESC ) as bSysTable ORDER BY id ASC
size:每次获取的记录数
start:请求的页数
MySQL（SQLLite分页也和MySQL一样）：
select * from table_name limit start,pageNum
start:取数据的定位点 [开始是从0开始]
pageNum：每次取多少
比如:start=0|ageNum=5
那么就是说，取1-6 条数据
Oracle：
SELECT * FROM (SELECT a.*, ROWNUM row_num FROM ( table_name ) a) b
WHERE b.row_num BETWEEN 1 AND 3
这是取table_name第一到第三条记录
