Plan hash value: 1513680126
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| Id | Operation | Name | Rows | Bytes| Cost (%CPU)| Time |
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| 0 | SELECT STATEMENT | | 1 | **| 374 (2)| 00:00:04 |
| 1 | SORT AGGREGATE | | 1 | **| | |
| 2 | NESTED LOOPS | | 1 | **| 374 (2)| 00:00:04 |
| 3 | NESTED LOOPS | | 23 | **| 374 (2)| 00:00:04 |
| 4 | NESTED LOOPS | | 23 | 1817| 369 (2)| 00:00:03 |
| 5 | NESTED LOOPS | | 12 | 648| 5 (0)| 00:00:01 |
| 6 | NESTED LOOPS | | 5 | 135| 2 (0)| 00:00:01 |
|* 7 | INDEX UNIQUE SCAN | IDX**31PK | 1 | 9| 1 (0)| 00:00:01 |
|* 8 | INDEX RANGE SCAN | IDX**35PK | 5 | 90| 1 (0)| 00:00:01 |
| 9 | TABLE ACCESS BY INDEX ROWID| TBL10001TBL10001 | 2 | 54| 1 (0)| 00:00:01 |
|* 10 | INDEX RANGE SCAN | IDX10001IK1 | 2 | | 1 (0)| 00:00:01 |
|* 11 | TABLE ACCESS BY INDEX ROWID | TBL10017 | 2 | 50| 30 (0)| 00:00:01 |
|* 12 | INDEX RANGE SCAN | IDX10017PK | 2 | | 30 (4)| 00:00:01 |
|* 13 | INDEX UNIQUE SCAN | IDX10423PK | 1 | | 1 (0)| 00:00:01 |
|* 14 | TABLE ACCESS BY INDEX ROWID | TBL10423 | 1 | 22| 1 (0)| 00:00:01 |
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Predicate Information (identified by operation id):
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7 - access("TBL1031"."STORE_NO"='00000456')
8 - access("TBL1035"."STORE_NO"='00000456')
10 - access("TBL10001"."STORE_NO"='00000456' AND "TBL10001"."STORE_NO"="TBL**35"."STORE_NO")
11 - filter("TBL10017"."TRANSFER_FLAG"='0')
12 - access("TBL10017"."STCOP_NO "='23' AND "TBL10017"."USERID"="TBL10001"."USERID")
filter("TBL10017"."USERID"="TBL10001"."USERID")
13 - access("TBL10423"."STCOP_NO "='23' AND "TBL10017"."STNO "="TBL10423"."STNO ")
14 - filter(TO_CHAR(INTERNAL_FUNCTION("TBL10423"."DUEDATE"),'YYYYMM')='202109')
以上执行计划,其具体执行次序是:7,8,6,10,9,12,11,5,13,4,14,3,2,1,0 问题是:2、3、4、5、6都是NESTED LOOP,可是这些NESTED LOOP,究竟是那两个表(或两个索引,或两个中间结果)的NESTED LOOP,能标识出来吗?