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PostgreSQL PGCES-02 Exam - Topic 8 Question 70 Discussion

Actual exam question for PostgreSQL's PGCES-02 exam
Question #: 70
Topic #: 8
[All PGCES-02 Questions]

I would like to insert the contents of the text file users.dat into the table t1 using psql.

Contents of text file users.dat: Definition of table t1: CREATE TABLE t1 (uname TEXT, pass TEXT, id INTEGER); Select the most appropriate input from those below.

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Suggested Answer: A, E

by Juan at Sep 11, 2024, 02:43 PM

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Clemencia
3 months ago
I’m not sure about E, that syntax looks off to me.
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Elenore
3 months ago
Wait, can you really use file() in C and D? Sounds weird.
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Benedict
3 months ago
Definitely A, it’s the standard way to import data.
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Nichelle
4 months ago
I think B is incorrect, it’s for exporting, not importing.
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Margurite
4 months ago
Option A is the right choice!
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Mila
4 months ago
I’m confused about the delimiters. I thought we used them with \copy, but I can't remember if they apply to the other options too.
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Detra
4 months ago
I feel like I've seen a similar question before, and I think \copy is the way to go. So, A seems correct to me.
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Oliva
4 months ago
I'm not entirely sure, but I remember something about using INSERT INTO for adding data. Maybe option C or D?
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Dianne
5 months ago
I think option A is the right choice because it uses \copy to import data from a file, which we practiced in class.
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Joseph
5 months ago
I think option A is the way to go. The \copy command is the standard way to import data from a file into a table in psql, and the delimiter matches the format of the users.dat file. Seems like the most straightforward solution.
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Francine
5 months ago
I'm a little confused by the different options here. I know we need to import the data from the file, but I'm not sure if the \copy or INSERT INTO statements are the right approach. I'll have to think this through carefully.
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Brett
5 months ago
Ah, I've seen this type of question before. The key is to match the structure of the table with the format of the data in the file. Option A looks like the best fit since it uses the \copy command and specifies the delimiter.
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Carri
5 months ago
Hmm, I'm a bit unsure about this one. The question mentions using psql, so I'm not sure if the \copy command would work or if I need to use a different SQL statement. Maybe option C or D would be better?
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Oretha
5 months ago
I think the most appropriate option here is A. The \copy command is specifically designed for importing data from a file into a table, and the WITH DELIMITER ':' part matches the format of the users.dat file.
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Jeff
5 months ago
This looks like a straightforward SQL question. I think the key is to use the \copy command to export the data to a text file. I'll carefully review the syntax options to make sure I get the delimiter right.
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Cora
9 months ago
I heard the table t1 is where they keep all the secret agent passwords. Time to get hacking!
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Avery
10 months ago
B) is the opposite of what we want to do. We're trying to import data, not export it.
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Giovanna
10 months ago
E) is just plain wrong. \\insert isn't even a valid psql command.
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Jacqueline
8 months ago
D) INSERT INTO t1 SELECT uname, pass, id FROM file('users.dat');
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Desmond
8 months ago
B) \\copy t1 TO users.dat WITH DELIMITER ':'
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Stephen
9 months ago
A) \\copy t1 FROM users.dat WITH DELIMITER ':'
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Weldon
10 months ago
D) looks good, but it's not the most appropriate answer. We need a way to directly import the file, not select from it.
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Frederick
9 months ago
D) INSERT INTO t1 SELECT uname, pass, id FROM file('users.dat');
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Cassie
9 months ago
B) \copy t1 TO users.dat WITH DELIMITER ':'
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Adell
9 months ago
A) \copy t1 FROM users.dat WITH DELIMITER ':'
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Jesus
10 months ago
A) is the correct answer. The \\copy command is used to import data from a file into a table, not the other way around.
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Arthur
9 months ago
D) is not the correct answer. The correct syntax for importing data from a file into a table is \\copy t1 FROM users.dat WITH DELIMITER ':'.
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Marjory
9 months ago
B) is not the correct answer. The \\copy command is used to import data from a file into a table, not export data from a table to a file.
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Clorinda
9 months ago
A) is the correct answer. The \\copy command is used to import data from a file into a table, not the other way around.
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Mertie
11 months ago
I'm not sure about the answer. I think it might be D) INSERT INTO t1 SELECT uname, pass, id FROM file('users.dat').
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Jade
11 months ago
I agree with Mariann. Option A seems to be the most appropriate choice for inserting the contents of the text file into the table.
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Mariann
11 months ago
I think the correct answer is A) \\copy t1 FROM users.dat WITH DELIMITER ':' because it is used to copy data from a file into a table in psql.
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