A Stored Procedured w/ Multiple Parameters

create the following function:


CREATE FUNCTION dbo.ParmsToList (@Parameters varchar(500))
returns @result TABLE (Value varchar(30))
AS  
begin
     DECLARE @TempList table
          (
          Value varchar(30)
          )

     DECLARE @Value varchar(30), @Pos int

     SET @Parameters = LTRIM(RTRIM(@Parameters))+ ','
     SET @Pos = CHARINDEX(',', @Parameters, 1)

     IF REPLACE(@Parameters, ',', '') <> ''
     BEGIN
          WHILE @Pos > 0
          BEGIN
               SET @Value = LTRIM(RTRIM(LEFT(@Parameters, @Pos - 1)))
               IF @Value <> ''
               BEGIN
                    INSERT INTO @TempList (Value) VALUES (@Value) --Use Appropriate conversion
               END
               SET @Parameters = RIGHT(@Parameters, LEN(@Parameters) - @Pos)
               SET @Pos = CHARINDEX(',', @Parameters, 1)

          END
     END    
     INSERT @result
     SELECT value
        FROM @TempList
     RETURN
END    


and change your procedure into:

CREATE PROCEDURE SQLUSER.ProductSales
     
     @StartDate datetime,
     @EndDate datetime,
     @ProductNo varchar(8000)

 AS
SELECT    dbo.TicketDetail.ProductNo AS Number, SUM(dbo.TicketDetail.Dollars) AS Dollar, SUM(dbo.TicketDetail.Units) AS Unit,
                      dbo.Products.Description
FROM         dbo.TicketDetail INNER JOIN dbo.Products ON dbo.TicketDetail.LocationId = dbo.Products.LocationId AND dbo.TicketDetail.ProductNo = dbo.Products.ProductNo
WHERE     dbo.TicketDetail.ProductNo in ( select * from dbo.ParmsToList ( @ProductNo ))
AND  dbo.TicketDetail.TicketDate BETWEEN @StartDate and @EndDate
GROUP BY  dbo.TicketDetail.ProductNo, dbo.Products.Description
ORDER BY dbo.TicketDetail.ProductNo


and call the procedure will a comma-separated list of productno values (no spaces) as a single string.
exec SQLUSER.ProductSales '2006-10-01', '2006-11-01', '2342,24234,22313,32'