DELETE `p1` FROM `Person` AS `p1`, `Person` AS `p2` WHERE `p1`.`Email` = `p2`.`Email` AND `p1`.`Id` > `p2`.`Id`

Add sql solution for 196. Delete Duplicate Emails
Add sql solution for 196. Delete Duplicate Emails

196. Delete Duplicate Emails: https://leetcode.com/problems/delete-duplicate-emails/
