OceanBase Database supports various connection methods. You can connect to OceanBase Database using a client provided by OceanBase, or a compatible third-party client, as well as a driver provided by OceanBase, or a compatible third-party driver.

For more information, see "Connect to OceanBase Database".

The authentication feature is used to verify the identity of a user who attempts to log in to OceanBase Database. This feature checks whether the user can be associated with a certain database user and implements security control on the user's data access activities in the database based on the associated database user's privileges.

For more information, see "Identity authentication".

OceanBase Database supports creating users and granting them the appropriate privileges to limit and manage the data that they can access and the operations that they can perform, ensuring system security. OceanBase Database provides an allowlist policy to implement network security access control. It is also compatible with Oracle's label security feature, which enables access control at the row level, ensuring the security of reading and writing data.

For more information, see "Access control".

OceanBase Database supports encrypting data during data transmission and storage processes. For the transmission layer, OceanBase Database supports end-to-end data encryption. When storing data, OceanBase Database supports transparent encryption features, which ensure that data is not lost even if storage medium is lost, maximizing data security.

For more information, see "Data transmission encryption" and "Transparent data encryption".

The performance diagnosis feature is used to quickly diagnose cluster performance.

For more information, see "Diagnose cluster performance".