SQL ROW_NUMBER() 通用分页存储过程

  
--提取分页数据，返回总记录数  
Create procedure [dbo].[sp_Common_GetDataPaging_ReturnDataCount]  
(  
 @SqlString varchar(max), --查询语句  
 @PageNumber int, --当前的页码  
 @PageSize int, --每页显示的数据量  
 @SequenceField varchar(100), --排序字段  
 @DataCount int out --总数据量  
)  
as  
begin  
	
	
DECLARE @SqlAll VARCHAR(MAX) 
DECLARE @Sql1 VARCHAR(MAX) 
SET @SqlAll= @SqlString

--提取总记录数  
declare @Sqlcount nvarchar(max)  
set @Sqlcount = ISNULL(@Sql1,' ')+'  '+N'select @countNum = count(1) from ('+@SqlString+') as aaaaaaaaa'
exec sp_executesql @Sqlcount,N'@countNum int out',@DataCount out  

declare @BNum int  
declare @ENum int  
  declare @sql2 varchar(max);
set @BNum = (@PageNumber-1)*@PageSize+1  
set @ENum = @PageNumber*@PageSize  
  if(@PageNumber>200 or @PageSize>200)
  begin 
set @SqlString = substring(@SqlString,charindex('select',@SqlString)+6,len(@SqlString))  
--set @SqlString = 'SELECT  *  FROM (SELECT ROW_NUMBER()  OVER  ( ORDER BY '+@SequenceField+' )  AS RowNumber121 ,'+@SqlString +' ) as pageinga123 WHERE RowNumber121 BETWEEN  '+convert(varchar(10),@BNum)+' AND '+convert(varchar(10),@ENum)+' ORDER BY RowNumber121 '  

set @SqlString = 'SELECT  *  into #temp FROM ( SELECT ROW_NUMBER()  OVER  ( ORDER BY '+@SequenceField+' )  AS RowNumber121 ,'+@SqlString +' ) as pageinga123    '  
set @SqlString=@SqlString+' CREATE INDEX mycolumn_index ON #temp (RowNumber121) '
set @sql2='select *from #temp  WHERE RowNumber121 BETWEEN  '+convert(varchar(10),@BNum)+' AND '+convert(varchar(10),@ENum)+' ORDER BY RowNumber121  '
SET @Sql1 = ISNULL(@Sql1,' ')+'  '+ @SqlString+@sql2
--SET @Sql1 = ISNULL(@Sql1,' ')+'  '+ @SqlString
exec(@Sql1)
end
else begin 
set @SqlString = substring(@SqlString,charindex('select',@SqlString)+6,len(@SqlString))  

set @SqlString = 'SELECT  *  FROM (SELECT ROW_NUMBER()  OVER  ( ORDER BY '+@SequenceField+' )  AS RowNumber121 ,'+@SqlString +' ) as pageinga123 WHERE RowNumber121 BETWEEN  '+convert(varchar(10),@BNum)+' AND '+convert(varchar(10),@ENum)+' ORDER BY RowNumber121 '  
SET @Sql1 = ISNULL(@Sql1,' ')+'  '+ @SqlString
exec(@Sql1)
 end

end