Instance Architecture | Old Account Type | New Account Type | Description |
Two-node (formerly High Availability/Cluster Edition) | Admin | Privileged account | The old admin account corresponds to the new privileged account, which has the owner permissions of all databases by default. |
| Non-admin | Standard account | The old non-admin account corresponds to the new standard account. |
| - | Designated account | A new designated account is added, which can only view and own the specified database. A designated account can be authorized to multiple databases, but a database can be authorized to only one designated account. |
Single-node (formerly Basic Edition) | Admin | Admin account | The old admin account corresponds to the new admin account, which has the highest-level sysadmin permission and the owner permissions of all databases. After the admin account is enabled, the product SLA will no longer be guaranteed. |
| Non-admin | Standard account | The old non-admin account corresponds to the new standard account. |
| - | Privileged account | A privileged account is added, which has the owner permissions of all databases by default. |
| - | Designated account | A new designated account is added, which can only view and own the specified database. A designated account can be authorized to multiple databases, but a database can be authorized to only one designated account. |
Old Account Type | New Account Type | Old Account Permission | New Account Permission | Database-Level Permission |
Non-admin | Standard account | Read-only | Read-only | db_reader |
| | Read/Write | Owner | db_owner |
| | - | Read/Write | db_reader db_writer |
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