Oracle锁定临时表统计信息及锁住后是否能用动态采集的hint - 数据库编程

o size
3186713 bytes sent via SQL*Net to client
51949 bytes received via SQL*Net from client
4694 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
70384 rows processed

SQL> select /*+ dynamic_sampling(test 10) */ * from test;
已选择70384行。
执行计划
----------------------------------------------------------
Plan hash value: 1357081020
--------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 70384 | 13M| 197 (2)| 00:00:03 |

| 1 | TABLE ACCESS FULL| TEST | 70384 | 13M| 197 (2)| 00:00:03 |
--------------------------------------------------------------------------
Note
-----
- dynamic sampling used for this statement (level=2)
统计信息
----------------------------------------------------------
0 recursive calls
0 db block gets
5165 consistent gets
0 physical reads
0 redo size
3186713 bytes sent via SQL*Net to client
51949 bytes received via SQL*Net from client
4694 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
70384 rows processed

Oracle锁定临时表统计信息及锁住后是否能用动态采集的hint(二)