The following seems to work:
SELECT Temp.AddDate,Thread.NoThread,Thread.Title
FROM (SELECT TOP 10 MIN(Thread.NoThread) AS NoThread,MAX(Thread.AddDate) AS AddDate,MAX(Thread.Numero) AS Numero
FROM Thread
INNER JOIN Thread AS Thread2 ON Thread.Numero=Thread2.NoParent
WHERE Thread.AddDate>ldDate AND Thread.NoParent=0 AND (Thread.NoClient=44 OR Thread.NoClient=99 OR Thread.NoClient=51 OR
Thread.NoClient=37 OR Thread.NoClient=10 OR Thread.NoClient=39 OR Thread.NoClient=32 OR Thread.NoClient=41 OR Thread.NoClient=16 OR
Thread.NoClient=24 OR Thread.NoClient=50 OR Thread.NoClient=29 OR Thread.NoClient=28 OR Thread.NoClient=33 OR Thread.NoClient=38 OR
Thread.NoClient=36 OR Thread.NoClient=35 OR Thread.NoClient=21 OR Thread.NoClient=17 OR Thread.NoClient=5 OR Thread.NoClient=9 OR
Thread.NoClient=42 OR Thread.NoClient=52) AND ISNULL(Thread2.Numero)
GROUP BY Thread.NoThread ORDER BY 2 DESC) Temp
INNER JOIN Thread ON Temp.NoThread=Thread.Numero
ORDER BY Temp.AddDate DESC
Is there a fastest way to do it?
