Oracle中操作分页

Oracle中操作分页

sql：

with partdata as (select rownum rowno,t.* from tablename t where column='1090'order by column) select * from partdata where rowno between 0 and 50

据说这个速度快。

下面这个也可以：

Oracle分页有通用写法,假设一页5行
select * from （
    select t.*,rownum from (
        select * from table1 where condition order by column) t )
    where rownum>(pangeNow-1)*5 and rownum<=(pageNow)*5

如果基础查询不需要排序，可以省掉一层嵌套
select * from （
    select t.*,rownum from table1 t where condition )
    where rownum>(pangeNow-1)*5 and rownum<=(pageNow)*5
 
mysql中分页的写法：
select t.* from tbl_user t order by t.id limit $offset , $perpage
$currentPage = 1;//当前页码
其中后面$offset指的是第几页开始，$perpage每页显示的行数，
$offset = $perpage*($currentPage-1)