USE [WebStore]
GO
/****** Object:  StoredProcedure [dbo].[getdataset]    Script Date: 12/08/2009 11:16:05 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO


ALTER proc [dbo].[getdataset]
@TableList Varchar(max)='*',--搜索表的字段,比如：’id，datatime，job‘，用逗号隔开
@TableName Varchar(max), --搜索的表名
@SelectWhere NVarchar(max)='',--搜索条件，这里不用写where，比如：job=’teacher‘and class='2'
@SelectOrderId Varchar(200),--表主键字段名。比如：id
@SelectOrder Varchar(200)='', --排序，可以使用多字段排序但主键字段必需在最前面.也可以不写，比如：order by class asc
@intPageNo int=1, --页号
@intPageSize int=10 ,--每页显示数
@RecordCount int OUTPUT  --总记录数(存储过程输出参数)
as  
    
declare @TmpSelect      NVarchar(max)  
declare @Tmp     NVarchar(max)  

set nocount on--关闭计数

if @SelectWhere !=''
begin
set @TmpSelect = 'select @RecordCount = count(*) from '+@TableName+' where '+@SelectWhere
end
else
begin
set @TmpSelect = 'select @RecordCount = count(*) from '+@TableName
end

execute sp_executesql 
@TmpSelect,    --执行上面的sql语句
N'@RecordCount int OUTPUT' ,   --执行输出数据的sql语句，output出总记录数
@RecordCount  OUTPUT

  if (@RecordCount = 0)    --如果没有贴子，则返回零
       return 0
       
   /*判断页数是否正确*/
  if (@intPageNo - 1) * @intPageSize > @RecordCount   --页号大于总页数，返回错误
     return (-1)
set nocount off--打开计数
if @SelectWhere != '' 
begin
set @TmpSelect = 'select top '+str(@intPageSize)+' '+@TableList+' from '+@TableName+' where '+@SelectOrderId+' not in(select top '+str((@intPageNo-1)*@intPageSize)+' '+@SelectOrderId+' from '+@TableName+' where '+@SelectWhere +' '+@SelectOrder+') and '+@SelectWhere +' '+@SelectOrder
end
else
begin
set @TmpSelect = 'select top '+str(@intPageSize)+' '+@TableList+' from '+@TableName+' where '+@SelectOrderId+' not in(select top '+str((@intPageNo-1)*@intPageSize)+' '+@SelectOrderId+' from '+@TableName+' '+@SelectOrder+') '+@SelectOrder
end
execute sp_executesql @TmpSelect
return(@@rowcount)