ALTER PROCEDURE datyzamowien
        @data_poczatek DATE,
        @data_koniec DATE
AS
        SELECT * FROM Orders O
        WHERE O.OrderDate BETWEEN @data_poczatek AND @data_koniec
        go
EXEC datyzamowien '1996-07-04 00:00:00.000', '1996-10-04 00:00:00.000'