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PostgreSQL PGCES-02 Exam - Topic 9 Question 34 Discussion

What does the following command do? Select two correct descriptions regarding this SQL statement. SELECT * FROM information_schema.tables;
A) Requests a list of defined tables in the currently connected database.
B) Requests a list of defined tables in the 'information_schema' database.
C) Requests the contents of the 'tables' table in the 'information_schema' database.
D) Requests the contents of the 'tables' table in the 'information_schema' schema.
E) Requests a list of defined tables in the 'information_schema' schema.

PostgreSQL PGCES-02 Exam - Topic 9 Question 34 Discussion

Actual exam question for PostgreSQL's PGCES-02 exam
Question #: 34
Topic #: 9
[All PGCES-02 Questions]

What does the following command do? Select two correct descriptions regarding this SQL statement. SELECT * FROM information_schema.tables;

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Suggested Answer: A

by Goldie at Oct 26, 2022, 05:42 PM

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Antonio
8 months ago
I thought it was just about the 'tables' table, not the whole schema!
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Davida
8 months ago
I think it also lists tables in 'information_schema' schema.
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Cecilia
9 months ago
Wait, isn't it just pulling from 'information_schema'?
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Sharen
9 months ago
Totally agree, it's about the connected database!
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Francisca
9 months ago
It shows tables in the current database.
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Lavonne
9 months ago
I feel like option B is misleading; it talks about the 'information_schema' database, but I think we're actually querying a schema.
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Kendra
9 months ago
I'm a bit confused about option C and D; they both mention the 'tables' table, but I can't recall which one is accurate.
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Earlean
9 months ago
I remember practicing a question about the information_schema, and I think option E makes sense since it mentions the schema specifically.
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Boris
9 months ago
I think option A is correct because it seems to refer to the currently connected database, but I'm not entirely sure.
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Winifred
9 months ago
High availability is key for any cloud-based system. Downtime can be a major issue, so I'll go with that option.
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Noble
9 months ago
I'm feeling a bit lost on this one. I don't have much experience with enterprise software trials, so I'm not sure which option is correct. I'll try to eliminate the ones that seem least likely, but I may have to guess on this one.
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James
10 months ago
This looks straightforward enough. I just need to make sure I'm referencing the right worksheet and column.
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Aracelis
10 months ago
Okay, let's see. The key seems to be separating the agnostic and non-agnostic logic, and then applying the right patterns to centralize and orchestrate the services. I'm leaning towards option C, but I'll need to double-check the details.
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Brittni
1 year ago
Ah, the classic information_schema query! I always get that mixed up with the system tables. At least it's not asking about the data dictionary, that would really make my head spin.
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Lorenza
1 year ago
At least it's not asking about the data dictionary, that would really make my head spin.
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Billy
1 year ago
Ah, the classic information_schema query! I always get that mixed up with the system tables.
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Amie
1 year ago
B) Requests a list of defined tables in the 'information_schema' database.
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Ellsworth
1 year ago
A) Requests a list of defined tables in the currently connected database.
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Lorrine
1 year ago
E) Requests a list of defined tables in the 'information_schema' schema.
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Nana
1 year ago
Ah, the classic information_schema query! I always get that mixed up with the system tables.
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Roosevelt
1 year ago
B) Requests a list of defined tables in the 'information_schema' database.
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Tracey
1 year ago
A) Requests a list of defined tables in the currently connected database.
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Titus
1 year ago
B is definitely wrong. The information_schema database is part of the current database, not a separate one. A and E are the right choices here.
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Mohammad
1 year ago
I'm pretty sure C and D are the right answers. The information_schema database stores table definitions, and this query is accessing the 'tables' table within that schema.
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Kenneth
1 year ago
I'm not sure about option C and D. I think they are incorrect because the command is not requesting the contents of a specific table, but rather a list of tables.
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Melinda
1 year ago
A and E are both correct. The statement requests a list of tables defined in the information_schema database, which contains metadata about the database itself.
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Melda
1 year ago
E) Requests a list of defined tables in the 'information_schema' schema.
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Harris
1 year ago
B) Requests a list of defined tables in the 'information_schema' database.
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Roxane
1 year ago
E) Requests a list of defined tables in the 'information_schema' schema.
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Roxane
1 year ago
A) Requests a list of defined tables in the currently connected database.
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Mariko
1 year ago
A) Requests a list of defined tables in the currently connected database.
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Dannette
1 year ago
I agree with Devora. The command is requesting a list of defined tables in the currently connected database and in the 'information_schema' database.
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Devora
1 year ago
I think the correct descriptions are A and B.
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