how to encrypt emails in mysql database but still be able to query them?

Question

I want to store the email addresses of users in a MySQL database using encryption to ensure that they won\'t be made public if the database gets compromised. I believe if I encr

Answer 1

AES_DECRYPT(email, 'secretkey') and AES_ENCRYPT(email, 'secretkey') is optimal solution,

I am not 100% sure about beeing unique after encryption but theory said if email is unique encription should be unique