SQLSERVER 分页存储过程(2 在SQL2005下使用)

之前有一个SQLServer的分页存储过程 但是性能不是十分理想
又找了一个 
--SQL2005分页存储过程
/**
if  exists(select * from sysobjects where name='fenye')
drop proc fenye
**/
CREATE procedure fenye
  @tableName nvarchar(200) ,
  @pageSize int,
  @curPage int ,
  @orderBy nvarchar(200) ,
  @field nvarchar(200) = '*' ,
  @condition nvarchar(200)
AS
  SET NOCOUNT ON
  DECLARE
     @STMT nvarchar(max),        -- SQL to execute
     @recct int                  -- total # of records (for GridView paging interface)
  IF LTRIM(RTRIM(@condition)) = '' SET @condition = '1 = 1'
  IF @pageSize IS NULL BEGIN
    SET @STMT =  'SELECT   ' + @field + 'from ' + @tableName +'WHERE    ' + @condition + 'ORDER BY   ' + @orderBy
    EXEC (@STMT)                 -- return requested records
  END ELSE BEGIN
    SET @STMT =  'SELECT   @recct = COUNT(*) from     ' + @tableName + '    WHERE    ' + @condition
   -- EXEC sp_executeSQL @STMT, @params = N'@recct INT OUTPUT', @recct = @recct OUTPUT
    --SELECT @recct AS recct       -- return the total # of records
    DECLARE
      @lbound int,
      @ubound int
    SET @curPage = ABS(@curPage)
    SET @pageSize = ABS(@pageSize)
    IF @curPage < 1 SET @curPage = 1
    IF @pageSize < 1 SET @pageSize = 1
    SET @lbound = ((@curPage - 1) * @pageSize)
    SE