分页
select * from (
SELECT pr.*,ROW_NUMBER() OVER(ORDER BY pr.id desc) as xuhao from C_product as pr
INNER join C_type as ty on ty.id = pr.typeId where ty.is_jf = 1
) t1
where t1.xuhao BETWEEN 0 and 10
-- 先在子查询把需要的数据查出来,并把查出的数据用ROW_NUMBER() OVER(ORDER BY pr.id desc) 指定一个自增顺序列
-- 再在父查询中筛选需要的数据列,并通过子查询的指定列 t1.xuhao BETWEEN 0 and 10 来筛选需要的分页条数
-- 和mysql的分页不用,这里分页BETWEEN后的条件每次都要跟随而变化
-- start数 = (page - 1 ) * size + 1;
-- end数 = size * page;