Oracle uses scott user setautotraceon to report an error SP2-0618, SP2-0611

Error reported by scott user set autotrace on
SCOTT @ TEST0422> set autotrace onSP2-0618:Cannot find the Session Identifier. CheckPLUSTRACERole is enabledSP2-0611: Error enabling STATISTICS reportSCOTT @ TEST0422> conn/as sysdbaConnected. SYS @ TEST0422>
SYS @ TEST0422> grant plustrace to scott; grant plustrace to scott * ERROR at line 1: ORA-01919: role 'plustrace 'does not exist

Elapsed: 00:00:00. 35 ####################################### ######################################## ######## 3SYS @ TEST0422>@ $ ORACLE_HOME/sqlplus/admin/plustrce. SQLSYS @ TEST0422> SYS @ TEST0422> drop role plustrace; drop role plustrace * ERROR at line 1: ORA-01919: role 'plustrace 'does not exist

Elapsed: 00:00:00. 42SYS @ TEST0422> create role plustrace;
Role created.
Elapsed: 00:00:00. 11SYS @ TEST0422> SYS @ TEST0422> grant select on v _ $ sesstat to plustrace;
Grant succeeded.
Elapsed: 00:00:00. 02SYS @ TEST0422> grant select on v _ $ statname to plustrace;
Grant succeeded.
Elapsed: 00:00:00. 02SYS @ TEST0422> grant select on v _ $ mystat to plustrace;
Grant succeeded.
Elapsed: 00:00:00. 02SYS @ TEST0422> grant plustrace to dba with admin option;
Grant succeeded.
Elapsed: 00:00:00. 03SYS @ TEST0422> SYS @ TEST0422> set echo offSYS @ TEST0422> grant plustrace to scott;
Grant succeeded.
Elapsed: 00:00:00. 03SYS @ TEST0422> conn scott/tigerConnected. SCOTT @ TEST0422> set autotrace onSCOTT @ TEST0422> select * from emp;
Empno ename job mgr hiredate sal comm deptno ---------- ----------- ---------- 7369 smith clerk 7902 17-DEC-80 800 20 7499 allen salesman 7698 1600 300 ward salesman 7521 7698 1250 jones manager 7839 02-APR-81 2975 20 7654 martin salesman 7698 28-SEP-81 1250 1400 30 7698 blake manager 7839 01-MAY-81 2850 30 7782 clark manager 7839 09-JUN-81 2450 10 7788 scott analyst 7566 19-APR-87 3000 20 7839 king president 17-NOV-81 5000 10 7844 turner salesman 7698 08-SEP-81 1500 0 30 7876 adams clerk 7788 23-MAY-87 1100 20
Empno ename job mgr hiredate sal comm deptno ---------- --------- ---------- ------------ ---------- 7900 james clerk 7698 03-DEC-81 950 30 7902 ford analyst 7566 ANALYST 3000 20 7934 miller clerk 7782 23-JAN-82 1300 10
14 rows selected.
Elapsed: 00:00:00. 05
Execution Plan ---------------------------------------------------------- Plan hash value: 3956160932
Role | Id | Operation | Name | Rows | Bytes | Cost (% CPU) | Time | percent | 0 | select statement | 14 | 1218 | 3 (0) | 00:00:01 | 1 | table access full | EMP | 14 | 1218 | 3 (0) | 00:00:01 | --------------------------------------------------------------------------
Note ------dynamic sampling used for this statement

Statistics defaults 0 recursive cballs 0 db block gets 8 consistent gets 0 physical reads 0 redo size 1363 bytes sent via SQL * Net to client 385 bytes received via SQL * Net from client 2 SQL * Net roundtrips to/from client 0 sorts (memory) 0 sorts (disk) 14 rows processed
SCOTT @ TEST0422>