ALTER PROCEDURE [dbo].[sp_Products_SelectSkipAndTakeWhereDynamic]
(
@start int,
@end int,
@sortByExpression varchar (200),
@productID int = NULL,
@productName nvarchar (40) = NULL,
@supplierID int = NULL,
@categoryID int = NULL,
@quantityPerUnit nvarchar (20) = NULL,
@unitPrice money = NULL,
@unitsInStock smallint = NULL,
@unitsOnOrder smallint = NULL,
@reorderLevel smallint = NULL,
@discontinued bit = NULL
)
AS
BEGIN
SET NOCOUNT ON;
SELECT
[ProductID],
[ProductName],
[SupplierID],
[CategoryID],
[QuantityPerUnit],
[UnitPrice],
[UnitsInStock],
[UnitsOnOrder],
[ReorderLevel],
[Discontinued]
FROM [dbo] . [Products]
WHERE
([ProductID] = @productID OR @productID IS NULL) AND
([ProductName] LIKE '%' + @productName + '%' OR @productName IS NULL) AND
([SupplierID] = @supplierID OR @supplierID IS NULL) AND
([CategoryID] = @categoryID OR @categoryID IS NULL) AND
([QuantityPerUnit] LIKE '%' + @quantityPerUnit + '%' OR @quantityPerUnit IS NULL) AND
([UnitPrice] = @unitPrice OR @unitPrice IS NULL) AND
([UnitsInStock] = @unitsInStock OR @unitsInStock IS NULL) AND
([UnitsOnOrder] = @unitsOnOrder OR @unitsOnOrder IS NULL) AND
([ReorderLevel] = @reorderLevel OR @reorderLevel IS NULL) AND
([Discontinued] = @discontinued OR @discontinued IS NULL)
ORDER BY
CASE WHEN @sortByExpression = 'ProductID' THEN [ProductID] END,
CASE WHEN @sortByExpression = 'ProductID desc' THEN [ProductID] END DESC,
CASE WHEN @sortByExpression = 'ProductName' THEN [ProductName] END,
CASE WHEN @sortByExpression = 'ProductName desc' THEN [ProductName] END DESC,
CASE WHEN @sortByExpression = 'SupplierID' THEN [SupplierID] END,
CASE WHEN @sortByExpression = 'SupplierID desc' THEN [SupplierID] END DESC,
CASE WHEN @sortByExpression = 'CategoryID' THEN [CategoryID] END,
CASE WHEN @sortByExpression = 'CategoryID desc' THEN [CategoryID] END DESC,
CASE WHEN @sortByExpression = 'QuantityPerUnit' THEN [QuantityPerUnit] END,
CASE WHEN @sortByExpression = 'QuantityPerUnit desc' THEN [QuantityPerUnit] END DESC,
CASE WHEN @sortByExpression = 'UnitPrice' THEN [UnitPrice] END,
CASE WHEN @sortByExpression = 'UnitPrice desc' THEN [UnitPrice] END DESC,
CASE WHEN @sortByExpression = 'UnitsInStock' THEN [UnitsInStock] END,
CASE WHEN @sortByExpression = 'UnitsInStock desc' THEN [UnitsInStock] END DESC,
CASE WHEN @sortByExpression = 'UnitsOnOrder' THEN [UnitsOnOrder] END,
CASE WHEN @sortByExpression = 'UnitsOnOrder desc' THEN [UnitsOnOrder] END DESC,
CASE WHEN @sortByExpression = 'ReorderLevel' THEN [ReorderLevel] END,
CASE WHEN @sortByExpression = 'ReorderLevel desc' THEN [ReorderLevel] END DESC,
CASE WHEN @sortByExpression = 'Discontinued' THEN [Discontinued] END,
CASE WHEN @sortByExpression = 'Discontinued desc' THEN [Discontinued] END DESC
OFFSET @start ROWS
FETCH NEXT @end ROWS ONLY
END