通用分页存储过程4

CREATE proc [dbo].[page]

@RecordCount int output,

@ReturnCount bit,

@QueryStr nvarchar(1000)='table1', --表名、视图名、查询语句

@PageSize int=20, --每页的大小(行数)

@PageCurrent int=2, --要显示的页 从0开始

@FdShow nvarchar (2000)='*', --要显示的字段列表

@IdentityStr nvarchar (100)='id', --主键

@WhereStr nvarchar (2000)='1=1',

@FdOrder nvarchar(100)='desc' --排序 只能取desc或者asc

as

set nocount on

declare

@sql nvarchar(2000)

if @WhereStr = ''

begin

set @WhereStr = '1=1'

end

if @ReturnCount=1

begin

declare @tsql nvarchar(200)

set @tsql=N'select @RecordCount = count(*) from ' + @QueryStr + ' where ' + @WhereStr

exec sp_executesql @tsql,N'@RecordCount int output',@RecordCount output

end

if @PageCurrent = 0

begin

set @sql = 'select top ' + cast(@PageSize as nvarchar(3)) + ' ' + @FdShow + ' from ' + @QueryStr + ' where ' + @WhereStr + ' order by ' + @IdentityStr + ' ' + @FdOrder

end

else

begin

if upper(@FdOrder) = 'DESC'

begin

set @sql = 'select top ' + cast(@PageSize as nvarchar(3)) + ' ' + @FdShow + ' from ' + @QueryStr + ' where ' + @WhereStr + ' and ' + @IdentityStr + '< ( select min(' + @IdentityStr + ') from (select top ' + cast(@PageSize*@PageCurrent as nvarchar(10)) + ' ' + @IdentityStr + ' from ' + @QueryStr + ' where ' + @WhereStr + ' order by ' + @IdentityStr + ' desc) as t) order by ' + @IdentityStr + ' desc'

end

else

begin

set @sql = 'select top ' + cast(@PageSize as nvarchar(3)) + ' ' + @FdShow + ' from ' + @QueryStr + ' where ' + @WhereStr + ' and ' + @IdentityStr + '> ( select max(' + @IdentityStr + ') from (select top ' + cast(@PageSize*@PageCurrent as nvarchar(10)) + ' ' + @IdentityStr + ' from ' + @QueryStr + ' where ' + @WhereStr + ' order by ' + @IdentityStr + ' asc) as t) order by ' + @IdentityStr + ' asc'

end

end

--print @sql

execute(@sql)