Fast paging technic MS SQL2005

In MySQL it’s easy to page with SELECT … LIMIT … , but in MSSQL we must do something below.

In MSSQL 2000 we used to do paging either by dynamic sql or by some advanced techniques like the example with rowcount. In MSSQL 2005 with the introduction of ROW_NUMBER function life is a lot easier.

DECLARE @PageNum AS INT;
DECLARE @PageSize AS INT;
SET @PageNum = 2;
SET @PageSize = 10;

WITH OrdersRN AS
(
    SELECT ROW_NUMBER() OVER(ORDER BY OrderDate, OrderID) AS RowNum
          ,OrderID
          ,OrderDate
          ,CustomerID
          ,EmployeeID
      FROM dbo.Orders
)

SELECT *
  FROM OrdersRN
 WHERE RowNum BETWEEN (@PageNum - 1) * @PageSize + 1
                  AND @PageNum * @PageSize
 ORDER BY OrderDate
         ,OrderID;