Finding Duplicate Emails with GROUP BY and HAVING COUNT - xha OA Question | OAHelper
Company: xha
Difficulty: easy
Problem Statement
Finding Duplicate Emails with GROUP BY and HAVING COUNT A Customers table holds these Email values: a@x.com b@x.com a@x.com c@x.com What is returned by this query? SELECT Email FROM Customers GROUP BY Email HAVING COUNT(*) > 1;