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PostgreSQL PGCES-02 Exam - Topic 6 Question 62 Discussion

Select two incorrect descriptions regarding the following SQL statements.CREATE TABLE cities ( name text,population float ); CREATETABLE capitals ( statechar(2) ) INHERITS(cities);
A) Defines the tables called 'cities' and 'capitals'. and E) The second SQL statement results in an error, since the 'INHERITS' keyword is no longer available.
B) 'capitals' inherits 'cities'.
C) Searching 'capitals' also searches rows in 'cities'.
D) The columns 'name' and 'population' are also defined in 'capitals'.

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
7 months ago
D is misleading, 'capitals' doesn't redefine those columns.
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Aimee
8 months ago
B and C are correct descriptions.
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Carey
8 months ago
Wait, is the INHERITS keyword really gone? That sounds off.
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Lavera
8 months ago
Totally agree, E is definitely wrong!
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Rebbecca
8 months ago
A and E are incorrect.
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Mohammad
9 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
9 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
9 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
9 months ago
I think option E is definitely incorrect because the INHERITS keyword is still valid in PostgreSQL.
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Jerry
9 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
9 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
9 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
9 months ago
This looks like a pretty straightforward SQL question. I'm confident I can handle this.
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Geraldine
9 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
9 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
9 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
9 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
9 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
1 year 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
1 year 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
1 year 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
1 year ago
E) The second SQL statement results in an error, since the 'INHERITS' keyword is no longer available.
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Kenda
1 year ago
C) Searching \'capitals\' also searches rows in \'cities\'.
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Lawrence
1 year ago
C) Searching 'capitals' also searches rows in 'cities'.
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Kent
1 year ago
B) \'capitals\' inherits \'cities\'.
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Han
1 year ago
B) 'capitals' inherits 'cities'.
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Claribel
1 year ago
A) Defines the tables called \'cities\' and \'capitals\'.
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Timothy
1 year ago
A) Defines the tables called 'cities' and 'capitals'.
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Dorothy
1 year 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
1 year ago
Exactly, it's a way to reuse the structure of an existing table in a new one.
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Blondell
1 year ago
So it's like creating a new table based on an existing one, with all the same columns.
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Carry
1 year 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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