SP2-0618 SP2-0611 ORA-01919 开执行计划错误（oracle12c）

SQL> SET AUTOTRACE ON
SP2-0618: Cannot find the Session Identifier.  Check PLUSTRACE role is enabled
SP2-0611: Error enabling STATISTICS report
SQL> conn system/oracle
Connected.
SQL> grant PLUSTRACE to adela;
grant PLUSTRACE to adela
      *
ERROR at line 1:
ORA-01919: role 'PLUSTRACE' does not exist

解决：

drop role c##plustrace; create role c##plustrace; grant select on v_$sesstat to c##plustrace; grant select on v_$statname to c##plustrace; grant select on v_$mystat to c##plustrace; grant c##plustrace to c##adela with admin option; conn c##adela/oracle set autotrace on

查看下效果

SQL> set line 100 SQL> select cname from c where cno in (select cno from sc where sno in (select sno from s where sname='adela')); CNAME -------------------- OS C++ Java DB Execution Plan ---------------------------------------------------------- Plan hash value: 2310661688 -------------------------------------------------------------------------------------------- | Id  | Operation             | Name       | Rows  | Bytes | Cost (%CPU)| Time       | -------------------------------------------------------------------------------------------- |   0 | SELECT STATEMENT         |           |     1 |    22 |     5   (0)| 00:00:01 | |   1 |  NESTED LOOPS             |           |       |       |        |       | |   2 |   NESTED LOOPS             |           |     1 |    22 |     5   (0)| 00:00:01 | |   3 |    VIEW              | VW_NSO_1    |     2 |    10 |     4   (0)| 00:00:01 | |   4 |     HASH UNIQUE          |           |     1 |    48 |        |       | |   5 |      NESTED LOOPS         |           |     2 |    48 |     4   (0)| 00:00:01 | |*  6 |       TABLE ACCESS FULL      | S       |     1 |    13 |     3   (0)| 00:00:01 | |*  7 |       INDEX RANGE SCAN         | SC_PK       |     2 |    22 |     1   (0)| 00:00:01 | |*  8 |    INDEX UNIQUE SCAN         | SYS_C009862 |     1 |       |     0   (0)| 00:00:01 | |   9 |   TABLE ACCESS BY INDEX ROWID| C       |     1 |    17 |     1   (0)| 00:00:01 | -------------------------------------------------------------------------------------------- Predicate Information (identified by operation id): ---------------------------------------------------    6 - filter("SNAME"='adela')    7 - access("SNO"="SNO")    8 - access("CNO"="CNO") Note -----    - dynamic statistics used: dynamic sampling (level=2)    - this is an adaptive plan Statistics ----------------------------------------------------------       0  recursive calls       0  db block gets      16  consistent gets       0  physical reads       0  redo size     612  bytes sent via SQL*Net to client     543  bytes received via SQL*Net from client       2  SQL*Net roundtrips to/from client       0  sorts (memory)       0  sorts (disk)       4  rows processed

ok！