可按任意字段排序的分页存储过程

可按任意字段排序的分页存储过程

create PROCEDURE dbo.GetPagingRecord
(
@tablename varchar(100),--表名或视图表
@fieldlist varchar(4000)='*',--欲选择字段列表
@orderfield varchar(100),--排序字段
@keyfield varchar(100),--主键
@pageindex int,--页号,从0开始
@pagesize int=20,--页尺寸
@strwhere varchar(4000),--条件
@ordertype bit=1--排序,1,降序,0,升序
)
AS
/*
名称:GetPagingRecord
作用:按任意字段进行排序分页
作者:菩提树(MARK MA)
时间:2004-12-14
声明:此代码你可以无偿使用及转载,但在转载时,请勿移称本文字声明
*/
SET NOCOUNT ON
declare @sqlstr varchar(6000)
--处理SQL中危险字符,并且将条件处理成易嵌入的形式
set @strwhere=replace(@strwhere,'''','''''')
set @strwhere=replace(@strwhere,'--','')
set @strwhere=replace(@strwhere,';','')
set @sqlstr='declare @CurPageNum int;'
set @sqlstr=@sqlstr+'declare @nextpagenum int;'
set @sqlstr=@sqlstr+'set @curpagenum='+cast(@PageIndex as varchar)+'*'+cast(@Pagesize as varchar)+';'
set @sqlstr=@sqlstr+'set @nextpagenum='+cast(@PageIndex+1 as varchar)+'*'+cast(@Pagesize as varchar)+';'
set @sqlstr=@sqlstr+'declare @sqlstr varchar(6000);'
if @ordertype=1
begin
set @sqlstr=@sqlstr+'set @sqlstr=''select '+@fieldlist+' from ( select top ''+cast(@nextpagenum as varchar)+'' * from

'+@tablename+'  where '+@strwhere+' order by '+@orderfield+' desc ) as a where '+@keyfield+' not in (

select top ''+cast(@curpagenum as varchar)+'' '+@keyfield+' from '+@tablename+' where '+@strwhere+'

order by '+@orderfield+' desc) order by '+@orderfield+' desc'';'
end
else
begin
set @sqlstr=@sqlstr+'set @sqlstr=''select '+@fieldlist+' from ( select top ''+cast(@nextpagenum as varchar)+'' * from

'+@tablename+'  where '+@strwhere+' order by '+@orderfield+' asc ) as a where '+@keyfield+' not in (

select top ''+cast(@curpagenum as varchar)+'' '+@keyfield+' from '+@tablename+' where '+@strwhere+'

order by '+@orderfield+' asc) order by '+@orderfield+' asc'';'
end
set @sqlstr=@sqlstr+'execute( @sqlstr)'
--print @sqlstr
execute(@sqlstr)