递归查询添加索引层次oracle,查询条件中包含多个索引列无法走索引的问题
SQL> SELECT COUNT(1)FROM EX_PLATFORM_2013_LOG partition(EX_PLATFORM_2013_05_LOG) tbWHERE 1 = 1AND TB.SENDERCODE = '110000C059'and TB.RECEIVERCODE = '110000C018'AND TB.EXCHANGECODE = 'SQXJ_SSZSRW_QX
SQL> SELECT COUNT(1)
FROM EX_PLATFORM_2013_LOG partition(EX_PLATFORM_2013_05_LOG) tb
WHERE 1 = 1
AND TB.SENDERCODE = '110000C059'
and TB.RECEIVERCODE = '110000C018'
AND TB.EXCHANGECODE = 'SQXJ_SSZSRW_QXZBSJ'
2 3 4 5 6 7 ;
Elapsed: 00:00:00.13
Execution Plan
----------------------------------------------------------
Plan hash value: 1055332655
---------------------------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop |
---------------------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 43 | 231 (0)| 00:00:03 | | |
| 1 | SORT AGGREGATE | | 1 | 43 | | | | |
| 2 | PARTITION RANGE SINGLE | | 137K| 5771K| 231 (0)| 00:00:03 | 5 | 5 |
| 3 | BITMAP CONVERSION COUNT | | 137K| 5771K| 231 (0)| 00:00:03 | | |
| 4 | BITMAP AND | | || | | | |
|* 5 | BITMAP INDEX SINGLE VALUE| LOG_2013_SENDERCODE_IDX | || | | 5 | 5 |
|* 6 | BITMAP INDEX SINGLE VALUE| LOG_2013_EXCHANGECODE_IDX | || | | 5 | 5 |
|* 7 | BITMAP INDEX SINGLE VALUE| LOG_2013_RECEIVERCODE_IDX | || | | 5 | 5 |
---------------------------------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
5 - access("TB"."SENDERCODE"='110000C059')
6 - access("TB"."EXCHANGECODE"='SQXJ_SSZSRW_QXZBSJ')
7 - access("TB"."RECEIVERCODE"='110000C018')
Statistics
----------------------------------------------------------
5436 recursive calls
10 db block gets
1277 consistent gets
320 physical reads
0 redo size
528 bytes sent via SQL*Net to client
524 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
98 sorts (memory)
0 sorts (disk)
1 rows processed
魔乐社区(Modelers.cn) 是一个中立、公益的人工智能社区,提供人工智能工具、模型、数据的托管、展示与应用协同服务,为人工智能开发及爱好者搭建开放的学习交流平台。社区通过理事会方式运作,由全产业链共同建设、共同运营、共同享有,推动国产AI生态繁荣发展。
更多推荐


所有评论(0)