SQL Query displaying only 14 out of 28 expected rows

Question

My below SQL query is supposed to display 28 results, however it only displays 14.

I think its something to do with my joins, one of the tables has no records at all for the missing results but I expect it to display as NULL if thats the case:

SELECT c.Name, u.Id, u.From, u.Send, COUNT(al.Id) as Total
FROM Auction_Location al
LEFT JOIN US u ON u.Id = al.CId
LEFT JOIN City c ON c.Id = u.CityId 
WHERE al.CityId IN (983, 984)
GROUP BY c.Name, u.Id, u.From, u.Send
ORDER BY c.Name ASC;

Answer 1

Your WHERE clause is turning the outer join into an inner join. Move the condition to an ON clause:

SELECT b.Name, b.Id, b.First, b.Second, COUNT(c.Id) as Total
FROM Table1 a LEFT JOIN 
     Table2 b
     ON b.Id = a.MyId LEFT JOIN
     Table3 c
     ON c.Id = b.CId  AND c.Id IN (9, 10)
GROUP BY b.Name, b.Id, b.First, b.Second
ORDER BY b.Name ASC;

Note that I changed the COUNT() so it counts matches in table3 rather than table1 . And I fixed the SELECT and GROUP BY clauses so they match.