Problem with connect remote aws mariadb

Question1
Hello there,aws mariadb did‘t provided a root account now,is there a way to replace root with other high privileges account?

Question2
Btw ,when I copy a mariadb from aws ec2 local to aws mariadb 。It’s shows Invalid default value for ‘creation’ , that checked this default value of creation is empty string and aws mariadb seems dont’t support empty string as a default value for datetime field. Am I missing some mariadb settings ?

Have you tried Using Frappe with Amazon RDS (or any other DBaaS)?

Thank you。