Question

I have the following query that returns 1738 rows:

select a.street, b.id 
from TableA a
left join TableB b on a.city = b.city
order by a.street

Executing the following query, returns 1073 rows:
select distinct street from TableA

How can I return distinct rows in my first query?
I tried using select distinct a.street, b.id, but this returns 1090 rows.

Do I need another join?

Answer 1

select a.street, b.id 
from TableA a
left join TableB b on a.city = b.city
group by a.street, b.id
order by a.street