SQL> create table test as select * from dba_objects;

 

Table created.

 

SQL> begin

  2  dbms_stats.gather_table_stats('SYS','TEST',cascade=>TRUE,no_invalidate=>false);

  3  end;

  4  /

 

PL/SQL procedure successfully completed.

 

SQL> create index id on test(object_id);

 

Index created.

 

 

QL> select object_name from test where object_id=10;

 

OBJECT_NAME

--------------------------------------------------------------------------------------------------------------------------------

C_USER#

 

SQL> select * from table(dbms_xplan.display_cursor());

 

PLAN_TABLE_OUTPUT

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

SQL_ID  f9h894yhsf9bb, child number 0

-------------------------------------

select object_name from test where object_id=10

 

Plan hash value: 4156516559

 

------------------------------------------------------------------------------------

| Id  | Operation                   | Name | Rows  | Bytes | Cost (%CPU)| Time     |

------------------------------------------------------------------------------------

|   0 | SELECT STATEMENT            |      |       |       |     2 (100)|          |

|   1 |  TABLE ACCESS BY INDEX ROWID| TEST |     1 |    31 |     2   (0)| 00:00:01 |

|*  2 |   INDEX RANGE SCAN          | ID   |     1 |       |     1   (0)| 00:00:01 |

------------------------------------------------------------------------------------

 

Predicate Information (identified by operation id):

---------------------------------------------------

 

   2 - access("OBJECT_ID"=10)

 

19 rows selected.

 

 

SQL>  select /*+ full(test) */ object_name from test where object_id=10;

 

OBJECT_NAME

--------------------------------------------------------------------------------------------------------------------------------

C_USER#

 

SQL> select * from table(dbms_xplan.display_cursor());

 

PLAN_TABLE_OUTPUT

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

SQL_ID  5wtmgtkv9y21y, child number 0

-------------------------------------

 select /*+ full(test) */ object_name from test where object_id=10

 

Plan hash value: 1357081020

 

--------------------------------------------------------------------------

| Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |

--------------------------------------------------------------------------

|   0 | SELECT STATEMENT  |      |       |       |   244 (100)|          |

|*  1 |  TABLE ACCESS FULL| TEST |     1 |    31 |   244   (1)| 00:00:03 |

--------------------------------------------------------------------------

 

Predicate Information (identified by operation id):

---------------------------------------------------

 

   1 - filter("OBJECT_ID"=10)

 

 

18 rows selected.

執行coe_load_sql_profile_v2.sql繫結執行計劃

SQL> @coe_load_sql_profile_v2.sql

 

Parameter 1:

SQL_ID (required)

 

Enter value for 1: f9h894yhsf9bb

 

 

PLAN_HASH_VALUE AVG_ET_SECS

--------------- -----------

     4156516559        .004

 

Parameter 2:

PLAN_HASH_VALUE (required)

 

SQL>set autotrace on

SQL> select object_name from test where object_id=10;

 

OBJECT_NAME

--------------------------------------------------------------------------------

C_USER#

 

 

Execution Plan

----------------------------------------------------------

Plan hash value: 1357081020

 

--------------------------------------------------------------------------

| Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |

--------------------------------------------------------------------------

|   0 | SELECT STATEMENT  |      |     1 |    31 |   244   (1)| 00:00:03 |

|*  1 |  TABLE ACCESS FULL| TEST |     1 |    31 |   244   (1)| 00:00:03 |

--------------------------------------------------------------------------

 

Predicate Information (identified by operation id):

---------------------------------------------------

 

   1 - filter("OBJECT_ID"=10)

 

Note

-----

   - SQL profile "coe_f9h894yhsf9bb_1357081020" used for this statement

 

 

Statistics

----------------------------------------------------------

         34  recursive calls

          0  db block gets

       1116  consistent gets

          1  physical reads

          0  redo size

        534  bytes sent via SQL*Net to client

        523  bytes received via SQL*Net from client

          2  SQL*Net roundtrips to/from client

          1  sorts (memory)

          0  sorts (disk)

          1  rows processed