PostgreSQL PGCES-02 Exam - Topic 6 Question 62 Discussion

Actual exam question for PostgreSQL's PGCES-02 exam

Question #: 62
Topic #: 6

[All PGCES-02 Questions]

Select two incorrect descriptions regarding the following SQL statements.

CREATE TABLE cities ( name text,

population float ); CREATE

TABLE capitals ( state

char(2) ) INHERITS

(cities);

ADefines the tables called 'cities' and 'capitals'.

B'capitals' inherits 'cities'.

CSearching 'capitals' also searches rows in 'cities'.

DThe columns 'name' and 'population' are also defined in 'capitals'.

EThe second SQL statement results in an error, since the 'INHERITS' keyword is no longer available.

Show Suggested Answer

Suggested Answer: A, E

by Emiko at May 17, 2024, 05:08 PM

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Maricela

3 months ago

D is misleading, 'capitals' doesn't redefine those columns.

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Aimee

3 months ago

B and C are correct descriptions.

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Carey

3 months ago

Wait, is the INHERITS keyword really gone? That sounds off.

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Lavera

4 months ago

Totally agree, E is definitely wrong!

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Rebbecca

4 months ago

A and E are incorrect.

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Mohammad

4 months ago

I feel like option A is correct, but I'm a bit confused about whether option B is also incorrect or not.

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Sonia

4 months ago

I remember practicing a question similar to this, and I think option C is also incorrect because searching 'capitals' should include 'cities' data.

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Sherell

4 months ago

I'm not sure about option D; it seems like 'capitals' wouldn't have its own 'name' and 'population' columns since it inherits from 'cities'.

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Latosha

5 months ago

I think option E is definitely incorrect because the INHERITS keyword is still valid in PostgreSQL.

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Jerry

5 months ago

The INHERITS keyword is tricky. I'll need to make sure I understand how it affects the relationship between the 'cities' and 'capitals' tables.

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Elfriede

5 months ago

I'm not sure about the correct answers here. I'll need to carefully read through the options and think about the SQL statements.

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Weldon

5 months ago

Okay, let me think this through step-by-step. The key is understanding how table inheritance works in SQL.

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Nan

5 months ago

This looks like a pretty straightforward SQL question. I'm confident I can handle this.

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Geraldine

5 months ago

Hmm, I'm a bit confused about the INHERITS keyword. I'll need to review that in my notes before answering.

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Margot

5 months ago

This seems like a straightforward question about the default views created when starting a new level. I'll carefully review the options and select the one that best matches the information provided.

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Paola

5 months ago

Hmm, I'm a bit unsure about this one. Do we need to install the Root CA and intermediate CA as well? Or is that a separate step?

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Jeannetta

5 months ago

I remember us practicing similar questions, and I keep mixing up definitions. I'm a bit confused between options A and D.

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Angelyn

5 months ago

Adding a plugin to the Jenkins pipeline to block releases when out of SLO seems like a good technical solution, but it might be too heavy-handed. I'd want to understand the tradeoffs there.

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Gilbert

9 months ago

Woah, hold up. If 'capitals' inherits 'cities', does that mean the capital cities have a higher population than the regular ones? This is getting too deep for me.

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