Question

I have this query that joins 3 table. It appears to be working but I am getting duplicates. How can I remove the duplicates?

SELECT FIRST 100 e.email_id, e.location_id, e.email, l.location_type, p.salutation,
       p.fname, p.lname
FROM email e, location l, person p
WHERE e.location_id = l.location_id
AND l.per_id = p.per_id

Answer 1

The simple answer is to add DISTINCT to your query.

SELECT FIRST 100 DISTINCT e.email_id, e.location_id, e.email, l.location_type, p.salutation, p.fname, p.lname
FROM email e, location l, person p
WHERE e.location_id = l.location_id
AND l.per_id = p.per_id