1) @ORDERID    INT    OUTPUT=> Does this create a output parameter in
@orderid?

2) what do you mean by identity value? The reference code is as belows
        select @orderid = @@identity (does this mean assign the value of
@@identity to @orderid??)

3) SELECT @MYIDENT AS IDENTITYVALUE and
    select @myident = 10

in line 8, @orderid=@myident output will assign the value of @myident to
@orderid and it will be an ouput result?

thanks for your great help!