You execute the following command to change the status of the SALES tablespace:SQL> ALTER TABLESPACE sales OFFLINE; Which statements describe the effect of the command()
A:The tablespace would require recovery to go back online.
B:A checkpoint is taken on all data files that are associated with the SALES tablespace.
C:The sessions that subsequently try to access the objects in the SALES tablespace receive an error
D:The new status of the SALES tablespace is recorded in the control file when the database instance isclosed
出自:Oracle认证