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| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop |
----------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 65 | 4 (0)| 00:00:01 | | |
| 1 | PARTITION SYSTEM SINGLE| | 1 | 65 | 4 (0)| 00:00:01 | 3 | 3 |
|* 2 | TABLE ACCESS FULL | S_P_TEST | 1 | 65 | 4 (0)| 00:00:01 | 3 | 3 |
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Predicate Information (identified by operation id):
---------------------------------------------------
2 - filter("COL1"=1)
Note
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- dynamic sampling used for this statement (level=2)
统计信息
----------------------------------------------------------
5 recursive calls
0 db block gets
15 consistent gets
0 physical reads
0 redo size
385 bytes sent via SQL*Net to client
338 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed 系统分区表的使用场景我想并不多，如果对传统的分区表数据的特性理解是：1.数据和分区是有联系的； 2.分区就是把很多的表粘在一起管理。那系统分区表只有第二个特性。
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