ÍòÄܵķÖÒ³sql(ת)

CREATE proc page
@RecordCount int output,
@QueryStr nvarchar(100)='table1',--±íÃû¡¢ÊÓͼÃû¡¢²éѯÓï¾ä
@PageSize int=20, --ÿҳµÄ´óС(ÐÐÊý)
@PageCurrent int=2, --ÒªÏÔʾµÄÒ³ ´Ó0¿ªÊ¼
@FdShow nvarchar (1000)='*', --ÒªÏÔʾµÄ×Ö¶ÎÁбí
@IdentityStr nvarchar (100)='id', --Ö÷¼ü
@WhereStr nvarchar (200)='1=1',
@FdOrder nvarchar(100)='desc' --ÅÅÐò Ö»ÄÜÈ¡desc»òÕßasc
as
declare
@sql nvarchar(2000)
set @sql = ''
if @WhereStr = ''
set @WhereStr = '1=1'
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)
if(@RecordCount is null or @RecordCount<=0)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
select @Recordcount
end
GO