create or replace package p_page is

-- Author : PHARAOHS

-- Created : 2006-4-30 14:14:14

-- Purpose : 分页过程

TYPE type_cur IS REF CURSOR; --定义游标变量用于返回记录集

PROCEDURE Pagination(

Pindex in number, --分页索引

Psql in varchar2, --产生dataset的sql语句

Psize in number, --页面大小

Pcount out number, --返回分页总数

v_cur out type_cur --返回当前页数据记录

)；

procedure PageRecordsCount(

Psqlcount in varchar2, --产生dataset的sql语句

Prcount out number --返回记录总数

)；

end p_page;

/

create or replace package body p_page is

PROCEDURE Pagination(

Pindex in number,

Psql in varchar2,

Psize in number,

Pcount out number,

v_cur out type_cur

)

AS

v_sql VARCHAR2(1000)；

v_count number;

v_Plow number;

v_Phei number;

Begin

------------------------------------------------------------取分页总数

v_sql := 'select count(*) from (' || Psql || ')';

execute immediate v_sql into v_count;

Pcount := ceil(v_count/Psize)；

------------------------------------------------------------显示任意页内容

v_Phei := Pindex * Psize + Psize;

v_Plow := v_Phei - Psize + 1;

--Psql := 'select rownum rn,t.* from zzda t' ; --要求必须包含rownum字段

v_sql := 'select * from (' || Psql || ') where rn between ' || v_Plow || ' and ' || v_Phei ;

open v_cur for v_sql;

End Pagination;

--**************************************************************************************

procedure PageRecordsCount(

Psqlcount in varchar2,

Prcount out number

)

as

v_sql varchar2(1000)；

v_prcount number;

begin

v_sql := 'select count(*) from (' || Psqlcount || ')';

execute immediate v_sql into v_prcount;

Prcount := v_prcount; --返回记录总数

end PageRecordsCount;

--**************************************************************************************

end p_page;

/