Question

I am wondering if it’s possible to use a view to get the top 5 lines from a table.
I am finding that Crystal reports doesn’t seem to have anything built in to do this, or I’d do it there.

When I query the view Select * from qryTranHistory, it returns the first 5 items, but if I try to select a specific type Select * from qryTranHistory Where tID = 45 it returns nothing, since there are no tID=45 in the top 5 normally.

Is it possible to do this?
Can it be accomplished in a sub report in Crystal Reports?

Answer 1

You can reference a sproc from Crystal Reports. In the sproc, use a conditional on the parameter.

ALTER PROCEDURE dbo.Get_TOP5
    (
    @tID INT = NULL
    )
AS
IF @tID IS NULL
    BEGIN
        SELECT TOP 5            
            FIELD1,
            FIELD2

        FROM qryTranHistory 
    END
ELSE
    BEGIN
        SELECT          
            FIELD1,
            FIELD2

        FROM qryTranHistory 

        WHERE tID =@tID
    END