Shulou(Shulou.com)06/01 Report--

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

Resolve:

Drop role caterpillar plustrace.create role caterpillar plustrace.Grant select on v_$sesstat to caterpillar plustrace.Grant select on v_$statname to cession plustrace.plustraceX grant select on v_$mystat to censor plustrace.Grant c##plustrace to c##adela with admin option;conn c##adela/oracleset autotrace on

Check the effect.

SQL > set line 100SQL > select cname from c where cno in (select cno from sc where sno in (select sno from s where sname='adela')) CNAME-OSC++JavaDBExecution 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 planStatistics--- 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!

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