Oracle Exam 1Z0-915-1 Topic 9 Question 14 Discussion

Actual exam question for Oracle's 1Z0-915-1 exam

Question #: 14
Topic #: 9

There are more than 10 concurrent users running queries on the DB system. The airport_geo table has been loaded successfully into a HeatWave cluster.

You want to run this query:

SELECT DISTINCT country FROM airport_geo ORDER BY country;

How do you determine whether the query is offloaded to the HeatWave cluster for execution?

AView the Query Execution Plan of the query by running EXPLAIN.

BCheck the value of the rapid_query_offload_count global status variable.

CQuery the rpd_tables table in performance_schema.

DCheck the value of the hw_data_scanned global status variable.

Show Suggested Answer

Suggested Answer: A

by Anabel at Oct 20, 2024, 09:40 AM

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Helga

18 days ago

I'm going with option D. It's like checking the fuel gauge to see if your car is running on gas or electricity. Simple and straightforward.

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Wendell

8 days ago

User 1: I think option A is the way to go. Let's check the Query Execution Plan.

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Darrin

1 months ago

Wait, aren't we supposed to be checking the global status variables? Maybe we should just ask the DBA to take a look at the server logs. They'll know what's going on.

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Edda

5 days ago

We can actually view the Query Execution Plan by running EXPLAIN.

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Kina

1 months ago

I'm leaning towards option A. Viewing the Query Execution Plan should give us a good idea of where the query is being executed, right?

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The question says the airport_geo table has been loaded into the HeatWave cluster, so I think option C is the way to go. Querying the rpd_tables table should tell us if the table is being used by HeatWave.

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Angella

1 months ago

Hmm, I'm not sure about that. Wouldn't checking the hw_data_scanned global status variable give us a more direct answer? That seems like a more reliable way to determine the offload.

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Nadine

7 days ago

C) Query the rpd_tables table in performance_schema.

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Kathrine

9 days ago

B) Check the value of the rapid_query_offload_count global status variable.

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Ettie

16 days ago

A) View the Query Execution Plan of the query by running EXPLAIN.

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Cristy

1 months ago

I think option B is the way to go. Checking the rapid_query_offload_count global status variable should give us a clear indication of whether the query was offloaded to the HeatWave cluster.

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Gilberto

1 days ago

Let's check that variable to see if the query was offloaded.

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Daisy

5 days ago

Checking the rapid_query_offload_count global status variable should give us a clear indication.

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Tina

22 days ago

I think option B is the way to go.

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Vivienne

1 months ago

I agree with An. Checking the Query Execution Plan is the best way to determine if the query is offloaded to the HeatWave cluster.

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An

2 months ago

I think the answer is A) View the Query Execution Plan of the query by running EXPLAIN.

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Oracle Exam 1Z0-915-1 Topic 9 Question 14 Discussion

Contribute your Thoughts:

Helga

Wendell

Darrin

Edda

Kina

Adrianna

Angella

Nadine

Kathrine

Ettie

Cristy

Gilberto

Daisy

Tina

Vivienne

An