CIW Exam 1D0-541 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?

ASELECT *
FROM Dept1_Parts
AND
(SELECT *
FROM Dept2_Parts);

BSELECT *
FROM Dept1_Parts
INTERSECTION
(SELECT *
FROM Dept2_Parts);

CSELECT *
FROM Dept1_Parts
WHERE Dept1_Parts.Part_ID = Dept2_Parts.Part_ID;

DSELECT *
FROM Dept1_Parts
WHERE Dept1_Parts.Part_ID = Dept2_Parts.Part_ID;

Show Suggested Answer

Suggested Answer: D

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

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Laura

22 days 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!'

upvoted 0 times

Jacinta

6 days ago

I think Option D is the way to go.

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Fidelia

1 months 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.

upvoted 0 times

Sena

12 days ago

Yeah, I agree. Option B is the right choice for creating an intersection of the two relations.

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Jade

25 days ago

No, Option A is definitely not valid SQL syntax. It's a trick question.

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Cherry

1 months 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 months ago

No, option A is definitely not valid SQL syntax. It's a trick question.

upvoted 0 times

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Fernanda

2 months 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

2 months 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.

upvoted 0 times