Explain plan and statistics with SQL*Plus

SQL> set timing on
SQL> set autotrace traceonly explain
SQL> select * from dual;
Elapsed: 00:00:00.00

Execution Plan
----------------------------------------------------------
Plan hash value: 272002086

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| Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |
--------------------------------------------------------------------------
|   0 | SELECT STATEMENT  |      |     1 |     2 |     2   (0)| 00:00:01 |
|   1 |  TABLE ACCESS FULL| DUAL |     1 |     2 |     2   (0)| 00:00:01 |
--------------------------------------------------------------------------

SQL> set autotrace traceonly statistics
SQL> /

Elapsed: 00:00:00.01

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

SQL> set autotrace traceonly explain

SQL> /

Elapsed: 00:00:00.00

Execution Plan

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

Plan hash value: 272002086

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

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

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

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

|   1 |  TABLE ACCESS FULL| DUAL |     1 |     2 |     2   (0)| 00:00:01 |

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