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Huawei H14-231_V1.0 Exam - Topic 2 Question 30 Discussion

Actual exam question for Huawei's H14-231_V1.0 exam
Question #: 30
Topic #: 2
[All H14-231_V1.0 Questions]

A developer defines an entity class

Student.java and use the following code to construct the table:

@Entity(tableName ="student", ignoredColums

=["ignoredColumn1","ignoredColumn2", indices

= (@Index(value =("firstName.","lastName",

name="name_index", unique = true)))

pub1ic class User extends OrmObject{

@PrimaryKey(autoGenerate= true)

private Integer userld;

private String firstName;

private String lastName;

private int age;

private doub1e balance;

private int ignoredColumn1;

private int ignoredColumn2;

}

Which of the following descriptions of this code is wrong?

Show Suggested Answer Hide Answer
Suggested Answer: A

by Tawna at Dec 06, 2024, 09:59 PM

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Leslee
3 months ago
D seems off, unique means no duplicates, right?
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Francisca
3 months ago
Wait, how can the index not be unique if it’s defined as unique?
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Sarina
3 months ago
I agree, C is definitely true, the table name is 'student'.
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Vanna
4 months ago
B is wrong, it says "Doubles" instead of "Doubles".
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Cristal
4 months ago
A is correct, ignoredColumns means those fields won't be in the table.
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Dottie
4 months ago
The table name being 'student' sounds right, but I can't recall if that's explicitly stated in the code. I guess C could be misleading.
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Ryann
4 months ago
I practiced a similar question where the index had to be unique, so I'm leaning towards D being the wrong one since it says the index isn't unique.
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Page
4 months ago
I'm not entirely sure, but I think doubles might be a typo in option B. It should probably refer to double, right?
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Alaine
5 months ago
I remember something about ignoredColumns meaning those fields won't be part of the database, so A seems correct to me.
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Eden
5 months ago
This seems like a straightforward entity class definition, but the exam question is tricky. I'll need to closely examine each option and make sure I understand the implications of the code before selecting an answer.
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Aretha
5 months ago
I'm a bit unsure about the 'doubles' part in the second option. Does that mean the index is created on the 'firstName' and 'lastName' fields, or is that just a typo? I'll need to think this through carefully.
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Aaron
5 months ago
Alright, I think I've got a handle on this. The key is to focus on the index definition and make sure I understand the implications of the 'unique' flag. I'm feeling pretty confident about this one.
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Mendy
5 months ago
Okay, let's see here. The 'ignoredColumns' field seems straightforward, but I'm a bit confused about the composite index. I'll need to double-check the syntax and requirements for that.
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Elsa
5 months ago
Hmm, this looks like a tricky one. I'll need to carefully read through the code and options to make sure I understand all the details before selecting an answer.
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Pamella
10 months ago
The developer must have been high on caffeine when they wrote this code. Ignore columns? What is this, a selective memory test?
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Elvis
10 months ago
This code is more complex than my grocery list. I'm just going to go with option C and call it a day.
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Hermila
8 months ago
Definitely, sometimes simpler is better.
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Laurel
8 months ago
That's a good choice. This code can be confusing.
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Ryan
9 months ago
Option C) The name of the data sheet is 'student'.
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Renea
11 months ago
Hmm, you might be right. Let's review the code again to confirm.
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Markus
11 months ago
Wait, why would you ignore columns? That's like throwing away perfectly good data! I hope the developers have a good reason for that.
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Hoa
9 months ago
D) The index value of the composite index 'name_index' is not unique
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Delbert
9 months ago
C) The name of the data sheet is \'student\'.
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Shonda
10 months ago
B) Doubles creates composite indexes name_index for the \'firstName\' and \'1astName\' fields
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Dana
10 months ago
A) ignoredColumns\' indicates that the field does not need to be added to the attributes of the student table
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Leigha
11 months ago
I agree with Renea. Option D is wrong, the composite index 'name_index' is defined as unique.
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Johnetta
11 months ago
I disagree, I believe the wrong description is D) The index value of the composite index 'name_index' is not unique.
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Renea
11 months ago
The code seems straightforward, but option D is incorrect. The index value of the composite index 'name_index' is set to unique, so it should be correct.
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Renea
11 months ago
I think the wrong description is B) Doubles creates composite indexes name_index for the 'firstName' and 'lastName' fields.
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