You finance and billing guys will never understand.
These are rockstars.
They work for facebook.
They would never ever type UPDATE users SET email = username || '@facebook.com'; WHERE username == 'john.smith';
These are rockstars.
They work for facebook.
They would never ever type UPDATE users SET email = username || '@facebook.com'; WHERE username == 'john.smith';
UPDATE users SET email = username || '@facebook.com';
Then let the users sort out the exceptions.