执行计划在那里查看呀！

Question

SQL> set autotrace traceonly
 SQL> select * from dual;
Execution Plan
----------------------------------------------------------
   0      SELECT STATEMENT Optimizer=CHOOSE (Cost=2 Card=1 Bytes=2)
   1    0   TABLE ACCESS (FULL) OF 'DUAL' (Cost=2 Card=1 Bytes=2)
Statistics
----------------------------------------------------------
          0  recursive calls
          0  db block gets
          3  consistent gets
          0  physical reads
          0  redo size
        195  bytes sent via SQL*Net to client
        271  bytes received via SQL*Net from client
          2  SQL*Net roundtrips to/from client
          0  sorts (memory)
          0  sorts (disk)
          1  rows processed

Answer 1

http://download-west.oracle.com/docs/cd/B10501_01/server.920/a90842/ch13.htm#1012209