Which two are true concerning the execution plan?

Examine the exhibit.

Which two are true concerning the execution plan?

Examine the exhibit.

Which two are true concerning the execution plan?

A.
No partition-wise join is used

B.
A full partition-wise join is used

C.
A partial partition-wise join is used

D.
The SALES table is composite partitioned

Explanation:
* The following example shows the execution plan for the full partition-wise join with
the sales table range partitioned by time_id, and subpartitioned by hash on cust_id.
———————————————————————————————-|
Id | Operation | Name | Pstart| Pstop |IN-OUT| PQ Distrib |
———————————————————————————————-|
0 | SELECT STATEMENT | | | | | |
| 1 | PX COORDINATOR | | | | | |
| 2 | PX SEND QC (RANDOM) | :TQ10001 | | | P->S | QC (RAND) |
|* 3 | FILTER | | | | PCWC | |
| 4 | HASH GROUP BY | | | | PCWP | |
| 5 | PX RECEIVE | | | | PCWP | |
| 6 | PX SEND HASH | :TQ10000 | | | P->P | HASH |
| 7 | HASH GROUP BY | | | | PCWP | |
| 8 | PX PARTITION HASH ALL | | 1 | 16 | PCWC | |
|* 9 | HASH JOIN | | | | PCWP | |
| 10 | TABLE ACCESS FULL | CUSTOMERS | 1 | 16 | PCWP | |
| 11 | PX PARTITION RANGE ITERATOR| | 8 | 9 | PCWC | |
|* 12 | TABLE ACCESS FULL | SALES | 113 | 144 | PCWP | |
———————————————————————————————-

Predicate Information (identified by operation id):
—————————————————3 – filter(COUNT(SYS_OP_CSR(SYS_OP_MSR(COUNT(*)),0))>100)
9 – access(“S”.”CUST_ID”=”C”.”CUST_ID”)
12 – filter(“S”.”TIME_ID”<=TO_DATE(‘ 1999-10-01 00:00:00’, ‘syyyy-mm-dd hh24:mi:ss’) AND
“S”.”TIME_ID”>=TO_DATE(‘ 1999-07-01
00:00:00′, ‘syyyy-mm-dd hh24:mi:ss’))
* Full partition-wise joins can occur if two tables that are co-partitioned on the same key are joined
in a query. The tables can be co-partitioned at the partition level, or at the subpartition level, or at a
combination of partition and subpartition levels. Reference partitioning is an easy way to
guarantee co-partitioning. Full partition-wise joins can be executed in serial and in parallel.
Reference: Oracle Database VLDB and Partitioning Guide, Full Partition-Wise Joins: Composite -Single-Level



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A full partition wise join is used according to PX Partition HASH ALL (line 8) is before HASH JOIN (line 9)