Discuss PostgreSQL PGCES-02 Exam Topic 5 Question 8

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.

Suggested Answer: A, D

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14 comments · newest first

Amie 11 months ago

E? Really? Can't see data at all? That’s surprising!

Val 11 months ago

D makes sense, poor plans without ANALYZE.

Ashley 12 months ago

C seems off, not sure about file size reduction.

Dalene 12 months ago

B sounds right, no locks during execution.

Daron 12 months ago

A is definitely true, it updates stats.

Princess 1 year ago

I’m a bit confused about E; I thought it just affected performance, not visibility of data.

Rozella 1 year ago

I practiced a similar question, and I feel like D is also a good choice because if ANALYZE isn't done, the query planner might struggle.

Kenda 1 year ago

I'm not entirely sure, but I think B might be right too since I recall it doesn't lock the table during execution.

Merilyn 1 year ago

I remember that the ANALYZE command updates statistics, so I think A is definitely correct.

Allene 1 year ago

This seems like a straightforward question about rolling back a corrupt virus-pattern file. I think the key is to identify which components need to be rolled back together.

Adela 1 year ago

I'm a bit confused by the wording of this question. I'll need to re-read it a few times and consider each option before making a decision.

Keith 1 year ago

This question seems pretty straightforward. I think the key is to identify which option is an example of a service action.

Naomi 1 year ago

This is a good question. I'm pretty confident the answer is either B (senior management) or C (information security manager). Those roles would be accountable for ensuring the proper incident response procedures are in place across the organization.

Nobuko 1 year ago

Hmm, I'm a bit unsure about this one. The options seem to cover different aspects of identity management, but I'm not totally clear on how they all fit together. I'll need to review my notes to make sure I understand the full lifecycle.

PostgreSQL PGCES-02 Exam - Topic 5 Question 8 Discussion