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CompTIA DA0-002 Exam - Topic 3 Question 5 Discussion

[Data Acquisition and Preparation]A data analyst needs to create a combined report that includes information from the following two tables:Managers tableIDFirst_nameLast_nameJob_title1001JohnDoeManager1002JaneRoeDirectorNon-managers tableIDFirst_nameLast_nameJob_title1003RobertRoeBusiness Analyst1004JaneDoeSales Representative1005JohnRoeOperations AnalystWhich of the following query methods should the analyst use for this task?
C) Union
A) Group
B) Join
D) Nested

CompTIA DA0-002 Exam - Topic 3 Question 5 Discussion

Actual exam question for CompTIA's DA0-002 exam
Question #: 5
Topic #: 3
[All DA0-002 Questions]

[Data Acquisition and Preparation]

A data analyst needs to create a combined report that includes information from the following two tables:

Managers table

ID

First_name

Last_name

Job_title

1001

John

Doe

Manager

1002

Jane

Roe

Director

Non-managers table

ID

First_name

Last_name

Job_title

1003

Robert

Roe

Business Analyst

1004

Jane

Doe

Sales Representative

1005

John

Roe

Operations Analyst

Which of the following query methods should the analyst use for this task?

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Suggested Answer: C

by Christiane at Jun 13, 2025, 05:34 PM

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Luisa
7 months ago
Union won't work here, wrong structure!
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Portia
7 months ago
Wait, can you really use Join for this?
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Alline
7 months ago
I agree, Join is the way to go.
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Bulah
7 months ago
Nested queries? Nah, too complicated for this.
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Twana
7 months ago
Definitely a Join! Gotta combine those tables.
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Raymon
8 months ago
I feel like Join is definitely the way to go here. It seems to fit the requirement of merging the two tables based on IDs.
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Lashandra
8 months ago
I'm leaning towards Nested queries, but I can't recall if they are necessary for this type of task. It feels a bit complex.
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Zachary
8 months ago
I remember practicing a question like this where we had to combine tables. I think Union was used for stacking data, not merging it.
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Latrice
8 months ago
I think we might need to use a Join since we're combining data from two related tables, right? But I'm not completely sure.
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Rashida
9 months ago
This is a good example of where I need to carefully read the question and understand the data structure before jumping to a solution. I'll need to evaluate the pros and cons of each approach to determine the best query method for this task.
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Marget
9 months ago
Based on the question, I think a JOIN is the way to go here. The goal is to create a combined report, so linking the two tables on a common field like the ID column seems like the logical solution.
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Roxane
9 months ago
I'm a bit confused on the best approach for this. Should I be using a GROUP BY to aggregate the data, or is a JOIN or UNION the way to go? I'll need to think this through carefully.
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Sena
9 months ago
Hmm, I'm not sure if a JOIN is the best approach here. The data seems to be split across two different tables, so I might need to consider a UNION instead to get all the records.
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Aliza
9 months ago
This looks like a pretty straightforward data integration task. I'd go with a JOIN to combine the two tables and get all the relevant information in one report.
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Malcom
12 months ago
B) Join is definitely the way to go here. It's the classic way to combine data from multiple tables. Although, I have to say, a UNION would be more fun. Who doesn't love a good old-fashioned data merge?
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Elvis
10 months ago
UNION can be fun, but JOIN is more efficient for this task.
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Cory
10 months ago
I agree, JOIN is the best method for combining data from different tables.
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Brice
11 months ago
B) Join is definitely the way to go here. It's the classic way to combine data from multiple tables. Although, I have to say, a UNION would be more fun. Who doesn't love a good old-fashioned data merge?
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Elmira
11 months ago
A) Group
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Lou
12 months ago
Hmm, I'm not sure. I was thinking maybe C) Union would work, since we want to combine the data from both tables. But you make a good point about using a JOIN.
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Callie
11 months ago
You're right, Join would be more appropriate for this task. It helps us merge the tables based on a shared key.
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Lorriane
11 months ago
I think B) Join would be the best option here. It allows us to combine the data based on a common column.
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Lauran
1 year ago
I'm not sure about Join. I think Union could also work because it combines the results of two queries into a single result set.
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Stephanie
1 year ago
I think the correct answer is B) Join. We need to combine the data from the two tables, and a JOIN operation would be the best way to do that.
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Louis
11 months ago
C) Union
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Arlette
12 months ago
B) Join
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Josephine
12 months ago
A) Group
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Viola
1 year ago
I agree with Dorsey. Join is the right query method for this task because it combines data based on a related column.
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Dorsey
1 year ago
I think the analyst should use a Join to combine the information from the two tables.
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