SQL> shutdown abort
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.

Total System Global Area 4294964736 bytes
Fixed Size                  9037312 bytes
Variable Size            1140850688 bytes
Database Buffers         2600468480 bytes
Redo Buffers                7737344 bytes
In-Memory Area            536870912 bytes
Database mounted.

SQL> select * from v$tablespace order by con_id, ts#;

       TS# NAME                           INC BIG FLA ENC     CON_ID
---------- ------------------------------ --- --- --- --- ----------
         0 SYSTEM                         YES NO  YES              1
         1 SYSAUX                         YES NO  YES              1
         2 UNDOTBS1                       YES NO  YES              1
         3 TEMP                           NO  NO  YES              1
         4 USERS                          YES NO  YES              1
         0 SYSTEM                         YES NO  YES              2
         1 SYSAUX                         YES NO  YES              2
         2 UNDOTBS1                       YES NO  YES              2
         3 TEMP                           NO  NO  YES              2
         0 SYSTEM                         YES NO  YES              3
         1 SYSAUX                         YES NO  YES              3
         3 TEMP                           NO  NO  YES              3
         5 USERS                          YES NO  YES              3
         6 LARGETS                        YES NO  YES              3
         8 ASKTOM                         YES NO  YES              3
        10 SAMPLES                        YES NO  YES              3
        11 UNDO01                         YES NO  YES              3
        12 NO_ASSM                        YES NO  YES              3

18 rows selected.