Write a SQL query to find all duplicate emails in a table named Person.
Id | |
---|---|
1 | a@b.com |
2 | c@d.com |
3 | a@b.com |
For example, your query should return the following for the above table:
a@b.com |
SELECT DISTINCT p1.Email
FROM Person p1, Person p2
WHERE p1.Email = p2.Email
AND p1.Id > p2.Id