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Question ID 2530

Examine the exhibit.
 
 
Which is true based on the information obtainable from the execution plan?

Option A

A.    A full partition-wise join performed between the EMPLOYEES and DEPARTMENTS tables.
 

Option B

B.    A full table scan on the DEPARTMENTS table performed serially by the query coordinator.
 

Option C

C.    A full table scan on the DEPARTMENTS table is performed serially by a single parallel execution server process.
 

Option D

D.    A partial partition-wise join performed between the EMPLOYEES and DEPARTMENTS tables.

 

Option E

E.    A full table scan on the EMPLOYEES table is done in parallel.

Correct Answer E
Explanation


Question ID 2531

Examine the exhibit to view the query and its execution plan?
 


 
 
What two statements are true?

Option A

A.    The HASH GROUP BY operation is the consumer of the HASH operation.
 

Option B

B.    The HASH operation is the consumer of the HASH GROUP BY operation.
 

Option C

C.    The HASH GROUP BY operation is the consumer of the TABLE ACCESS FULL operation for the CUSTOMER table.
 

Option D

D.    The HASH GROUP BY operation is consumer of the TABLE ACCESS FULL operation for the SALES table.

 

Option E

E.    The SALES table scan is a producer for the HASH JOIN operation.

Correct Answer A,E
Explanation

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