16000-16099: Oracle Hot Standby

ORA-16000: database open for read-only access

Cause: The database has been opened for read-only access. Attempts to modify the database using inappropriate DML or DDL statements generate this error.

Action: In order to modify the database, it must first be shut down and re-opened for read-write access.

ORA-16001: database already open for read-only access by another instance

Cause: The database has been opened for read-only access by another instance, and cannot be opened for read-write access by this instance.

Action: This instance must be opened for read-write access, or all other instances must first be shut down and re-opened for read-only access.

ORA-16002: database already open for read-write access by another instance

Cause: The database has been opened for read-write access by another instance, and cannot be opened for read-only access by this instance.

Action: This instance must be opened for read-only access, or all other instances must first be shut down and re-opened for read-write access.

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