You can use the following accounts to log on to the console:
Alibaba Cloud account: This account allows flexible control of all your Alibaba Cloud resources and is used for billing purposes. You must create an Alibaba Cloud account before you can purchase any Alibaba Cloud services.
RAM user account: optional. You can create and manage RAM user accounts in the Resource Access Management (RAM) console to share resources to multiple users. A RAM user account does not have ownership over any resources. Charges incurred are billed to the parent Alibaba Cloud account.
Database cluster accounts