CREATE procedure [dbo].[utilPAGE]
@datasrc nvarchar(200)
,@orderBy nvarchar(200)
,@fieldlist nvarchar(200) = '*'
,@filter nvarchar(200) = ''
,@pageNum int = 1
,@pageSize int = NULL
AS
SET NOCOUNT ON
DECLARE
@STMT nvarchar(max) -- SQL to execute
,@recct int -- total # of records (for GridView paging interface)
IF LTRIM(RTRIM(@filter)) = '' SET @filter = '1 = 1'
IF @pageSize IS NULL BEGIN
SET @STMT = 'SELECT ' + @fieldlist +
'FROM ' + @datasrc +
'WHERE ' + @filter +
'ORDER BY ' + @orderBy
EXEC (@STMT) -- return requested records
END ELSE BEGIN
SET @STMT = 'SELECT @recct = COUNT(*)
FROM ' + @datasrc + '
WHERE ' + @filter
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 @pageNum = ABS(@pageNum)
SET @pageSize = ABS(@pageSize)
IF @pageNum < 1 SET @pageNum = 1
IF @pageSize < 1 SET @pageSize = 1
SET @lbound = ((@pageNum - 1) * @pageSize)
SET @ubound = @lbound + @pageSize + 1
IF @lbound >= @recct BEGIN
SET @ubound = @recct + 1
SET @lbound = @ubound - (@pageSize + 1) -- return the last page of records if -- no records would be on the
-- specified page
END
SET @STMT = 'SELECT ' + @fieldlist + '
FROM (
SELECT ROW_NUMBER() OVER(ORDER BY ' + @orderBy + ') AS row, *
FROM ' + @datasrc + '
WHERE ' + @filter + '
) AS tbl
WHERE
row > ' + CONVERT(varchar(9), @lbound) + ' AND
row < ' + CONVERT(varchar(9), @ubound)
EXEC (@STMT) -- return requested records
END
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