SQL> select * from test where id=1;

50314 rows selected.

Execution Plan

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

Plan hash value: 1357081020

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

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

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

|   0 | SELECT STATEMENT  |      | 49075 |  3786K|    52   (2)| 00:00:01 |

|*  1 |  TABLE ACCESS FULL| TEST | 49075 |  3786K|    52   (2)| 00:00:01 |

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

Predicate Information (identified by
 
 operation id):

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

   1 - filter("ID"=1)

Note

-----

   - dynamic sampling used for this statement

Statistics

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

         32  recursive calls

          0  db block gets

       3644  consistent gets

          0  physical reads
 

          0  redo size

    1689175  bytes sent via SQL*Net to client

      37363  bytes received via SQL*Net from client

       3356  SQL*Net roundtrips to/from client

          0  sorts (memory)

          0  sorts (disk)

      50314  rows processed

SQL> select * from test where id =100;

Execution Plan

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

Plan hash value: 2473784974

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

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

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

|   0 | SELECT STATEMENT            |          |     1 |    79 |     2   (0)| 00:00:01 |

|   1 |  TABLE ACCESS BY INDEX ROWID| TEST     |     1 |    79 |     2   (0)| 00:00:01 |

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

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

Predicate Information (identified by operation id):

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

   2 - access("ID"=100)

Note

-----

   - dynamic sampling used for this statement

Statistics

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

          9  recursive calls

          0  db block gets

         73  consistent gets

          0  physical reads

          0  redo size

        588  bytes sent via SQL*Net to client

        469  bytes received via SQL*Net from client

          2  SQL*Net roundtrips to/from client

          0  sorts (memory)

          0  sorts (disk)

          1  rows processed

SQL>