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PostgreSQL Exam PGCES-02 Topic 11 Question 43 Discussion

Actual exam question for PostgreSQL's PGCES-02 exam
Question #: 43
Topic #: 11
[All PGCES-02 Questions]

Select two incorrect statements regarding 'DOMAIN'.

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Suggested Answer: A

by Viola at Apr 23, 2023, 07:35 PM

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Hester
2 months ago
Wait, so are we supposed to select the two incorrect statements, or the two correct ones? This domain debate is starting to feel a bit like a domain name dispute!
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Leigha
2 months ago
I heard the exam committee was really dominating the question selection process this year. Looks like they wanted to make sure we knew our domains inside and out!
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Elli
26 days ago
C) A domain is created by 'CREATE DOMAIN'.
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Tijuana
1 months ago
B) Domain is a namespace existing between databases and objects such as tables.
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Fallon
1 months ago
A) When defining a domain, you can add a default value and constraints to the original data.
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Arlette
3 months ago
Yep, B and E are the ones to go with. Domains are all about data types, not namespaces or input/output functions. Though I do wonder if the person who wrote this question was just testing our domain knowledge, or if they were trying to trip us up with some SQL trivia.
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Kattie
2 months ago
Yeah, it seems like they were trying to trip us up with some SQL trivia.
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Julianna
2 months ago
I think the person who wrote the question was just testing our domain knowledge.
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Lindsey
2 months ago
I agree, B and E are definitely incorrect. Domains are all about data types.
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Romana
3 months ago
Hmm, I'm not sure about option A. Can you really add a default value and constraints to a domain? That seems like it would be more of a table-level thing.
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Novella
2 months ago
User 2: Yeah, that's right. Those belong at the table level, not the domain level.
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Gwen
2 months ago
User 1: No, you can't add a default value and constraints to a domain.
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Delmy
3 months ago
I agree with Leatha. B and E seem to be the incorrect statements here. Domains are not related to namespaces or databases, and you don't need both input and output functions.
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Gerri
3 months ago
I agree with both of you. Statement B and E are indeed incorrect.
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Tandra
3 months ago
I believe statement E is incorrect because only input functions are required to define a domain.
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Leatha
3 months ago
I think options B and E are incorrect. Domains are not namespaces, and you only need an input function to define a domain, not both input and output functions.
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Kayleigh
2 months ago
Yes, that's right. A domain can have a default value and constraints, created with 'CREATE DOMAIN', and used as a column type in a table.
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Adria
2 months ago
So, the correct statements are A, C, and D.
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Wilson
2 months ago
I think option E is incorrect too. You only need an input function to define a domain.
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Gail
2 months ago
I agree, option B is incorrect. Domains are not namespaces.
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Vincent
3 months ago
I think statement B is incorrect because a domain is not a namespace.
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