GitHub

Delete Duplicate Emails.sql

-- Each row of this table contains an email. The emails will not contain uppercase letters. -- Write an SQL query to delete all the duplicate emails, keeping only one unique email with the smallest id ...
GitHub

Delete Duplicate Emails.sql

Each row of this table contains an email. The emails will not contain uppercase letters. Write a solution to delete all duplicate emails, keeping only one unique email with the smallest id. For SQL ...