>>Could you post some example data and desired result?
>
>Here is an example, where I added Sergey's logic in it:
>
>

>SELECT Master.Numero
>FROM (SELECT Master.Numero FROM Master 
>WHERE EXISTS (SELECT 1 FROM ManyToManyTable
> INNER JOIN ChildTable ON ManyToManyTable.NoChildTable=ChildTable.Numero 
> WHERE Master.Numero=ManyToManyTable.NoMaster
> HAVING COUNT(*)=SUM(CASE WHEN ChildTable.Enabled=1 THEN 1 ELSE 0 END))
>GROUP BY Master.Numero) Temp 
>INNER JOIN Master ON Temp.Numero=Master.Numero 
>

If you want to make sure that all records are enabled, then

select M.Numero
from Master M inner join ManyToManyTable MM on M.Numero = MM.NoMaster
inner join ChildTable C on MM.NoChildTable = C.Numero
group by M.Numero
having min(case when C.Enabled = 1 then 1 else 0 end) = 1 -- means all records are enabled
and sum(case when C.Enabled = 1 then 1 else 0 end) = count(C.Numero) -- total number of enabled records = total number of joined records