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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);

Show Suggested Answer Hide Answer
Suggested Answer: A, E

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

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Maricela
4 months ago
D is misleading, 'capitals' doesn't redefine those columns.
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Aimee
5 months ago
B and C are correct descriptions.
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Carey
5 months ago
Wait, is the INHERITS keyword really gone? That sounds off.
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Lavera
5 months ago
Totally agree, E is definitely wrong!
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Rebbecca
5 months ago
A and E are incorrect.
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Mohammad
6 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
6 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
6 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
6 months ago
I think option E is definitely incorrect because the INHERITS keyword is still valid in PostgreSQL.
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Jerry
6 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
6 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
6 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
6 months ago
This looks like a pretty straightforward SQL question. I'm confident I can handle this.
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Geraldine
6 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
6 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
6 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
6 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
6 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
11 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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Jess
11 months ago
Hmm, I'm pretty sure the 'INHERITS' keyword is just a typo. They meant to write 'INVOKES', right? That's how databases work these days, right?
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Adell
11 months ago
Ah, I see. So 'capitals' is the Darth Vader of 'cities', inheriting all its powers and secrets. Cool, cool.
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Kenneth
9 months ago
E) The second SQL statement results in an error, since the 'INHERITS' keyword is no longer available.
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Kenda
9 months ago
C) Searching \'capitals\' also searches rows in \'cities\'.
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Lawrence
10 months ago
C) Searching 'capitals' also searches rows in 'cities'.
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Kent
10 months ago
B) \'capitals\' inherits \'cities\'.
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Han
10 months ago
B) 'capitals' inherits 'cities'.
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Claribel
10 months ago
A) Defines the tables called \'cities\' and \'capitals\'.
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Timothy
10 months ago
A) Defines the tables called 'cities' and 'capitals'.
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Dorothy
11 months ago
Wait, 'INHERITS'? Isn't that something like a superpower I get when I beat the final boss of this certification exam?
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Nadine
10 months ago
Exactly, it's a way to reuse the structure of an existing table in a new one.
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Blondell
11 months ago
So it's like creating a new table based on an existing one, with all the same columns.
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Carry
11 months ago
No, 'INHERITS' in SQL is used to create a table that inherits all columns of another table.
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Meghann
1 year ago
C) Searching 'capitals' also searches rows in 'cities'. That's not true, they are separate tables.
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Ashley
1 year ago
B) 'capitals' inherits 'cities'. That's correct.
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Meghann
1 year ago
A) Defines the tables called 'cities' and 'capitals'.
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