초기 설치 후 scott /tiger 계정등에서 plan 확인을 위해 수행




[oracle@localhost ~]$ sqlplus '/as sysdba'

SQL*Plus: Release 10.2.0.1.0 - Production on Sun Mar 20 21:31:26 2011

Copyright (c) 1982, 2005, Oracle.  All rights reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options



plan table 생성


SQL> conn scott/tiger
Connected.
SQL> @$ORACLE_HOME/rdbms/admin/utlxplan.sql

Table created.




PLUSTRACE 룰 생성




SQL> conn sys/manager as sysdba
Connected.


SQL>
SQL> @$ORACLE_HOME/sqlplus/admin/plustrce.sql
SQL>
SQL> drop role plustrace;
drop role plustrace
          *
ERROR at line 1:
ORA-01919: role 'PLUSTRACE' does not exist


SQL> create role plustrace;

Role created.

SQL>
SQL> grant select on v_$sesstat to plustrace;

Grant succeeded.

SQL> grant select on v_$statname to plustrace;

Grant succeeded.

SQL> grant select on v_$mystat to plustrace;

Grant succeeded.

SQL> grant plustrace to dba with admin option;

Grant succeeded.

SQL>
SQL> set echo off
SQL> grant plustrace to scott;

Grant succeeded.


 

PLAN 보기 확인



SQL> conn scott/tiger
Connected.
SQL> set linesize 120
SQL> set autot on
SQL> select * from emp where rownum=1;

     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
      7369 SMITH      CLERK           7902 17-DEC-80        800                    20


Execution Plan
----------------------------------------------------------
Plan hash value: 1973284518

---------------------------------------------------------------------------
| Id  | Operation          | Name | Rows  | Bytes | Cost (%CPU)| Time     |
---------------------------------------------------------------------------
|   0 | SELECT STATEMENT   |      |     1 |    87 |     2   (0)| 00:00:01 |
|*  1 |  COUNT STOPKEY     |      |       |       |            |          |
|   2 |   TABLE ACCESS FULL| EMP  |    14 |  1218 |     2   (0)| 00:00:01 |
---------------------------------------------------------------------------

Predicate Information (identified by operation id):
---------------------------------------------------

   1 - filter(ROWNUM=1)

Note
-----
   - dynamic sampling used for this statement


Statistics
----------------------------------------------------------
        243  recursive calls
          0  db block gets
         56  consistent gets
          6  physical reads
          0  redo size
        826  bytes sent via SQL*Net to client
        385  bytes received via SQL*Net from client
          2  SQL*Net roundtrips to/from client
          2  sorts (memory)
          0  sorts (disk)
          1  rows processed

SQL>