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Oracle

1Z0-064 · Question #17

Examine the output of the query executed to diagnose the reason for performance degradation of queries: Which three factors will you investigate further to identify the cause of the performance…

The correct answer is A. Check the number of disk sorts. B. Check for the causes of the full table scans. C. Check the number of chained or migrated rows. See the full explanation below for the reasoning.

Question

Examine the output of the query executed to diagnose the reason for performance degradation of queries:

Which three factors will you investigate further to identify the cause of the performance degradation? (Choose three.)

Exhibit

1Z0-064 question #17 exhibit

Options

  • ACheck the number of disk sorts.
  • BCheck for the causes of the full table scans.
  • CCheck the number of chained or migrated rows.

How the community answered

(34 responses)
  • A
    100% (34)

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