On Thu, Jun 12, 2003 at 11:19:14 +0200, David Pradier <dpradier@apartia.fr> wrote:
>
> In short, i want to calculate the result of the function my_function for
> some values of my_var1, cross by some values of my_var2.
> These values are not taken in a table, but put in directly.
> They are a lot, so i would prefer not to write the whole thing, line
> after line. (Let's say 10 values for the first, and 40 for the second =>
> 400 lines of code to maintain...)
If there aren't a huge number of values you can use union. (If there
are a large number then you probably want to load temp tables using
copy.) For example:
select myval1, myval2, f(myval1,myval2) from (select '1' union select '2' union select '3') as tab1 (myval1),
(select'1' union select '2' union select '3') as tab2 (myval2);