Oliveiros d'Azevedo Cristina ha scritto:
> Howdy , Michele,
>
> Give this a try
>
> SELECT id_user FROM t_your_table WHERE datetime BETWEEN A -- plug
> here beginning of interval AND B -- and end here GROUP BY id_user
> HAVING COUNT(*) = -SUM(value)
>
> Then tell me if it gives you what you want
Thanks,
it works, but... it's really a trickle that exploits the value -1 if I
understand how its work.
If there is another value where look for? Example 13?
Thanks