Master Hibernate and JPA with Spring Boot in 100 Steps - Step 49 - JPA Inheritance Hierarchies and Mappings - How to Cho

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Information Technology (IT), Architecture, Business
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a major drawback of using the single table strategy for mapping inheritance relationships?
It requires complex joins for data retrieval.
It leads to data redundancy across tables.
It does not support inheritance relationships.
It compromises data integrity due to nullable columns.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the table per class strategy, what is a significant issue that arises?
Complex joins are required for data retrieval.
Inheritance relationships are not supported.
Data integrity is compromised due to nullable columns.
Common columns are repeated across tables, leading to redundancy.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the joined strategy improve data integrity?
By storing all data in a single table.
By eliminating the need for joins in data retrieval.
By using foreign keys to link tables and avoid data duplication.
By creating separate tables for each subclass without common columns.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key characteristic of the mapped superclass strategy?
It uses a single table with a distinguisher column.
It requires separate queries for each class to retrieve data.
It combines all class data into one table for performance.
It uses foreign keys to link subclass tables.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which strategy is recommended when data integrity is the highest concern?
Single table strategy
Mapped superclass strategy
Table per class strategy
Joined strategy
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