Which statement is true about the loss of a data file belonging to the default undo tablespace?
选项:
A:The database remains open in read-only mode.
B: The database is put in MOUNT state and requires recovery to be opened.
C: The database remains open for querying but no DML statements can be executed except by the users with SYSDBA privilege.
D: All the noncommitted transactions are lost.
E: The database instance aborts.
发布时间:2024-06-16 20:50:16