--*******************************************************
--* 分页存储过程 *
--* 撒哈拉大森林 *
--* 2010-6-28 *
--*******************************************************

if exists(select * from sysobjects where type='P' and name=N'P_Paging')
drop procedure P_Paging
go

create procedure P_Paging
@SqlStr nvarchar(4000), --查询字符串
@CurrentPage int, --第N页
@PageSize int --每页行数
as
set nocount on
declare @P1 int, --P1是游标的id
@rowcount int
exec sp_cursoropen @P1 output,@SqlStr,@scrollopt=1,@ccopt=1,@rowcount=@rowcount output
select ceiling(1.0*@rowcount/@PageSize) as 总页数--,@rowcount as 总行数,@CurrentPage as 当前页
set @CurrentPage=(@CurrentPage-1)*@PageSize+1
exec sp_cursorfetch @P1,16,@CurrentPage,@PageSize
exec sp_cursorclose @P1
set nocount off
go


----创建测试表
--if exists(select * from sysobjects where type='U' and name=N'Test_Students')
-- drop table Test_Students
--go
--create table Test_Students(
-- id int IDENTITY(1,1) not null,
-- name nvarchar(100) not null
--)
--
----创建测试数据
--declare @i int
--set @i = 100000
--while @i>0
-- begin
-- insert into Test_Students values('姓名')
-- set @i = @i - 1
-- end
--
----执行存储过程
--exec P_Paging 'select * from Test_Students order by id',100,100 --执行
--
----删除测试表
--if exists(select * from sysobjects where type='U' and name=N'Test_Students')
-- drop table Test_Students
--go