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CIW 1D0-541 Exam - Topic 2 Question 86 Discussion

Consider the Dept1_Parts and Dept2_Parts relations shown in the exhibit. Which of thefollowing SQL statements would create an intersection of the two relations with the widest varietyof Structured Query Language dialects?
D) SELECT * FROM Dept1_Parts WHERE Dept1_Parts.Part_ID = Dept2_Parts.Part_ID;
A) SELECT * FROM Dept1_Parts AND (SELECT * FROM Dept2_Parts);
B) SELECT * FROM Dept1_Parts INTERSECTION (SELECT * FROM Dept2_Parts);
C) SELECT * FROM Dept1_Parts WHERE Dept1_Parts.Part_ID = Dept2_Parts.Part_ID;

CIW 1D0-541 Exam - Topic 2 Question 86 Discussion

Actual exam question for CIW's 1D0-541 exam
Question #: 86
Topic #: 2
[All 1D0-541 Questions]

Consider the Dept1_Parts and Dept2_Parts relations shown in the exhibit. Which of the

following SQL statements would create an intersection of the two relations with the widest variety

of Structured Query Language dialects?

Show Suggested Answer Hide Answer
Suggested Answer: D

by Loreta at Apr 26, 2024, 08:15 AM

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Ronald
7 months ago
Wait, can you really use INTERSECTION in all SQL dialects? Sounds fishy.
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Miriam
7 months ago
Totally agree with B, it's the cleanest way to get the intersection!
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Cheryl
7 months ago
Not sure about option D, it looks similar to C but might not work as intended.
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Jimmie
7 months ago
I think option C is more straightforward for this case.
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Louvenia
8 months ago
Option B uses the INTERSECTION keyword, which is standard SQL.
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Miriam
8 months ago
I’m a bit confused about the syntax in option A. I don’t think AND is the right keyword to use there, but I can’t recall what should be used instead.
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Bok
8 months ago
I feel like I’ve seen a question like this before, and I think the INTERSECTION keyword is the most straightforward way to get the intersection.
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Bo
8 months ago
I'm not entirely sure, but I remember something about using WHERE clauses to find matches between two tables. Maybe options C and D are similar?
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Stephaine
8 months ago
I think option B looks familiar because it uses the INTERSECTION keyword, which we practiced in class.
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Trinidad
8 months ago
I'm a bit confused by the wording of the question. Does "widest variety of Structured Query Language dialects" mean the most portable solution across different database systems?
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Matilda
8 months ago
Okay, I've got this! The WHERE clause to match the Part_ID columns is the way to go for the widest SQL dialect support.
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Golda
8 months ago
Hmm, the intersection of the two relations is the key here. I think I'll need to explore the INTERSECTION and JOIN options to find the best solution.
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Dalene
8 months ago
This looks like a tricky one! I'll need to carefully review the SQL dialects supported to determine the widest variety.
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Bernardo
9 months ago
This is a good test of my SQL knowledge. I'll need to think through the pros and cons of each approach to determine the most versatile solution.
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Edgar
9 months ago
Hmm, I'm not sure if a compliance policy is the right approach for this. I'll need to double-check the requirements and see if there are any other options I should consider.
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Leota
9 months ago
I think respect involves listening to others, so maybe option B is the best example. It reminds me of a case study where employee input was crucial.
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Myong
9 months ago
I remember we did practice questions on permissions, and I think these are definitely Dangerous Permissions, but I could see how they might be confusing.
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Laura
1 year ago
I'm going with Option D. It's the simplest and most straightforward approach. Plus, it reminds me of that classic joke: 'Why did the SQL statement cross the road? To get to the other SIDE condition!'
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Celestina
11 months ago
Yeah, it adds a bit of humor to the technical discussion.
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Mabelle
11 months ago
Haha, that joke about the SQL statement crossing the road is funny!
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Olen
12 months ago
I agree, it seems like the most logical choice.
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Jacinta
1 year ago
I think Option D is the way to go.
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Fidelia
1 year ago
Option A? Really? Combining a SELECT with an AND operator? That's not valid SQL syntax, is it? Looks like a trick question to me.
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Rana
1 year ago
Yeah, Option B makes more sense. It's the proper way to create an intersection of two relations in SQL.
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Pamella
1 year ago
I think Option B is the correct answer. It uses the INTERSECTION keyword to find the common rows in both relations.
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Sena
1 year ago
Yeah, I agree. Option B is the right choice for creating an intersection of the two relations.
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Jade
1 year ago
No, Option A is definitely not valid SQL syntax. It's a trick question.
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Cherry
1 year ago
I think option B is the correct one. It uses the INTERSECTION keyword to find the common records.
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Tiffiny
1 year ago
No, option A is definitely not valid SQL syntax. It's a trick question.
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Fernanda
1 year ago
Hmm, I don't know. Option C looks like it might have a typo. Shouldn't it be `Dept1_Parts.Part_ID = Dept2_Parts.Part_ID` instead of the other way around?
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Dorothy
1 year ago
I'm not sure about that. Option D seems more portable to me. The WHERE clause with the equality comparison is a more basic SQL construct that should work across a wider range of database systems.
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Thersa
1 year ago
It might be more efficient, but it may not be supported by all SQL dialects. Option D is a safer choice for wider compatibility.
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Valentin
1 year ago
But what about Option B? Wouldn't using the INTERSECTION keyword be more efficient?
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Sabra
1 year ago
I agree, the WHERE clause with the equality comparison is a safer bet for compatibility.
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Clarence
1 year ago
Option D is definitely more portable. It's a basic SQL construct that should work on many systems.
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Sue
1 year ago
Option B looks like the way to go. The INTERSECTION keyword is supported by most SQL dialects, including SQL Server, Oracle, and PostgreSQL.
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Diane
1 year ago
Why do you think C is the correct answer?
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Veronique
1 year ago
I disagree, I believe the answer is C.
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Diane
1 year ago
I think the answer is B.
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