SQL> col member      new_value member format a50
SQL> col current_scn new_value scn
SQL> select member, current_scn
  2  from v$logfile f, v$log l, v$database
  3  where f.group# = l.group# and l.status='CURRENT' and rownum=1
  4  /
MEMBER                                             CURRENT_SCN
-------------------------------------------------- -----------
E:\ORACLE\BASES\MIKB2\RL_G1_1.RDO                    201132050

1 row selected.

SQL> select * from emp for update;
     EMPNO ENAME      JOB              MGR HIREDATE           SAL       COMM     DEPTNO
---------- ---------- --------- ---------- ----------- ---------- ---------- ----------
      7369 SMITH      CLERK           7902 17-DEC-1980        800                    20
      7499 ALLEN      SALESMAN        7698 20-FEB-1981       1600        300         30
      7521 WARD       SALESMAN        7698 22-FEB-1981       1250        500         30
      7566 JONES      MANAGER         7839 02-APR-1981       2975                    20
      7654 MARTIN     SALESMAN        7698 28-SEP-1981       1250       1400         30
      7698 BLAKE      MANAGER         7839 01-MAY-1981       2850                    30
      7782 CLARK      MANAGER         7839 09-JUN-1981       2450                    10
      7788 SCOTT      ANALYST         7566 19-APR-1987       3000                    20
      7839 KING       PRESIDENT            17-NOV-1981       5000                    10
      7844 TURNER     SALESMAN        7698 08-SEP-1981       1500          0         30
      7876 ADAMS      CLERK           7788 23-MAY-1987       1100                    20
      7900 JAMES      CLERK           7698 03-DEC-1981        950                    30
      7902 FORD       ANALYST         7566 03-DEC-1981       3000                    20
      7934 MILLER     CLERK           7782 23-JAN-1982       1300                    10

14 rows selected.

SQL> commit;

Commit complete.

SQL> begin
  2    sys.dbms_logmnr.add_logfile (logfilename=>'&member', options=>sys.dbms_logmnr.NEW);
  3    sys.dbms_logmnr.start_logmnr (
  4      startScn => &scn,
  5      options  =>   sys.dbms_logmnr.skip_corruption
  6                  + sys.dbms_logmnr.committed_data_only
  7                  + sys.dbms_logmnr.dict_from_online_catalog
  8    );
  9  end;
 10  /

PL/SQL procedure successfully completed.

SQL> select distinct operation from v$logmnr_contents
  2  /
OPERATION
--------------------------------
START
SELECT_FOR_UPDATE
COMMIT

3 rows selected.

SQL> exec sys.dbms_logmnr.end_logmnr;

PL/SQL procedure successfully completed.

SQL> @v

Oracle version: 11.2.0.4.181016 EE - JVM v1.6.0_43 - timezone files v11

SQL> select SUPPLEMENTAL_LOG_DATA_MIN, SUPPLEMENTAL_LOG_DATA_PK, SUPPLEMENTAL_LOG_DATA_UI
  2  from v$database
  3  /
SUPPLEME SUP SUP
-------- --- ---
YES      NO  NO