Oracle分页存储过程(转)

create or replace package PKG_Tools
is
type ResultData is ref cursor;
procedure sp_Page(p_PageSize int, --每页记录数
p_PageNo int, --当前页码,从 1 开始
p_SqlSelect varchar2, --查询语句,含排序部分
p_SqlCount varchar2, --获取记录总数的查询语句
p_OutRecordCount out int,--返回总记录数
p_OutCursor out ResultData);

end PKG_Tools;
/

create or replace package body PKG_Tools
is
procedure sp_Page(p_PageSize int, --每页记录数
p_PageNo int, --当前页码,从 1 开始
p_SqlSelect varchar2, --查询语句,含排序部分
p_SqlCount varchar2, --获取记录总数的查询语句
p_OutRecordCount out int,--返回总记录数
p_OutCursor out ResultData)
as
v_sql varchar2(3000);
v_count int;
v_heiRownum int;
v_lowRownum int;
begin
----取记录总数
execute immediate p_SqlCount into v_count;
p_OutRecordCount := v_count;
----执行分页查询
v_heiRownum := p_PageNo * p_PageSize;
v_lowRownum := v_heiRownum - p_PageSize +1;

v_sql := 'SELECT *
FROM (
SELECT A.*, rownum rn
FROM ('|| p_SqlSelect ||') A
WHERE rownum <= '|| to_char(v_heiRownum) || '
) B
WHERE rn >= ' || to_char(v_lowRownum) ;
--注意对rownum别名的使用,第一次直接用rownum,第二次一定要用别名rn

OPEN p_OutCursor FOR v_sql;

end sp_Page;

end PKG_Tools;
/