Bit hard to try to help with so little info, but maybe this could work?
SELECT Destination
FROM tablename
GROUP BY Destination
HAVING COUNT(DISTINCT Source) = 1
1
solved MySQL select issue ( unique ) [closed]
Bit hard to try to help with so little info, but maybe this could work?
SELECT Destination
FROM tablename
GROUP BY Destination
HAVING COUNT(DISTINCT Source) = 1
1
solved MySQL select issue ( unique ) [closed]