PostgreSQL Exam PGCES-02 Topic 11 Question 58 Discussion

Actual exam question for PostgreSQL's PGCES-02 exam

Question #: 58
Topic #: 11

[All PGCES-02 Questions]

Select two correct statements from below concerning the ANALYZE command.

AIt renews the statistical information of the table content.

BIt takes some time to execute, but it does not lock the table.

CIf the FULL option is used when executing, the size of the file can be reduced.

DIf ANALYZE is insufficient, the most efficient search plan will not be selected for queries.

EIf ANALYZE is not used at all, there are times when it becomes impossible to see any of the data.

Show Suggested Answer

Suggested Answer: A, D

by Yolando at Apr 11, 2024, 03:25 AM

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Annelle

20 hours ago

Hmm, I'm a bit uncertain about this one too. But I'm leaning towards A and D. Renewing the statistics seems important, and if ANALYZE is not used, the optimizer might not be able to choose the most efficient plan.

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Kirby

2 days ago

I'm not sure about this question, the options seem a bit confusing. I think I'll go with B and D, as the ANALYZE command is supposed to update the statistics and help the query optimizer choose the best execution plan, but it shouldn't lock the table.

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