高效sql2005分页存储过程

高效分页存储过程

--分页存储过程示例
Alter PROCEDURE [dbo].[JH_PageDemo]
 @pageSize int = 9000000000,
 @pageIndex int = 1 ,
 @orderBy   Nvarchar(200) = '' -- 不加order By
AS
SET NOCOUNT ON
--声明变量
DECLARE @select   VARCHAR(3048);
DECLARE @from       VARCHAR(512);
DECLARE @RowNumber   VARCHAR(256);
DECLARE @condition  nVARCHAR(3990);
DECLARE @groupBy varchar(50);
DECLARE @sql    VARCHAR(3998);
DECLARE @RowStartIndex INT;
DECLARE @RowEndIndex INT;
BEGIN
 SET NOCOUNT on
 IF @orderBy <> ''
  Set @orderBy = ' ORDER BY  '  + @orderBy;
 else
  Set @orderBy = ' ORDER BY Userid ' ;
 SET @select = ' select userid,username ,';
 --设置排序语句
 SET @RowNumber ='ROW_NUMBER() OVER (' + @orderBy + ' ) as RowNumber ';
 SET @select = @select  + @RowNumber;

   SET @from = ' FROM users  ';
 --设置条件语句@GULevel
 SET @condition = '  WHERE 1=1 ';
 SET @condition = @condition  + 'AND userid > 0';
 --分组语句
 SET @groupBy = ' GROUP BY USerID '

 SET @RowStartIndex = ( @pageIndex -1) * @pageSize + 1
 SET @RowEndIndex =  @pageIndex  * @pageSize ;

 --查询结果
 SET @sql = 'SET NOCOUNT ON;
 WITH ResultTable AS ( ' + @select + @from + @condition +')
 SELECT * FROM ResultTable WHERE RowNumber between ' +
 Cast(@RowStartIndex AS VARCHAR(32)) + ' AND ' + CAST(@RowEndIndex AS VARCHAR(32))
 + '  ; SELECT  count(*) as totalcount  '  + @from + @condition + '  '
 ;
 --PRINT @sql;
 EXEC(@sql); 

END

　　

--分页存储过程示例
Alter PROCEDURE [dbo].[JH_PageDemo]
 @pageSize int = 9000000000,
 @pageIndex int = 1 ,
 @orderBy   Nvarchar(200) = '' -- 不加order By
AS
SET NOCOUNT ON
--声明变量
DECLARE @select   VARCHAR(3048);
DECLARE @from       VARCHAR(512);
DECLARE @RowNumber   VARCHAR(256);
DECLARE @condition  nVARCHAR(3990);
DECLARE @groupBy varchar(50);
DECLARE @sql    VARCHAR(3998);
DECLARE @RowStartIndex INT;
DECLARE @RowEndIndex INT;

BEGIN
 SET NOCOUNT on
 IF @orderBy <> ''
  Set @orderBy = ' ORDER BY  '  + @orderBy;
 else
  Set @orderBy = ' ORDER BY Userid ' ;

SET @select = ' select userid,username ,';

--设置排序语句
 SET @RowNumber ='ROW_NUMBER() OVER (' + @orderBy + ' ) as RowNumber ';  
 SET @select = @select  + @RowNumber;
 
   SET @from = ' FROM users  ';

--设置条件语句@GULevel
 SET @condition = '  WHERE 1=1 '; 
 SET @condition = @condition  + 'AND userid > 0';

--分组语句
 SET @groupBy = ' GROUP BY USerID '
 
 SET @RowStartIndex = ( @pageIndex -1) * @pageSize + 1
 SET @RowEndIndex =  @pageIndex  * @pageSize ;
 
 --查询结果 
 SET @sql = 'SET NOCOUNT ON; 
 WITH ResultTable AS ( ' + @select + @from + @condition +')
 SELECT * FROM ResultTable WHERE RowNumber between ' +
 Cast(@RowStartIndex AS VARCHAR(32)) + ' AND ' + CAST(@RowEndIndex AS VARCHAR(32))
 + '  ; SELECT  count(*) as totalcount  '  + @from + @condition + '  '
 ;
 --PRINT @sql;
 EXEC(@sql); 
 
END