Master Java Web Services and REST API with Spring Boot- Step 33 - Creating Post Entity and Many to One Relationship with

The video tutorial covers creating a Post entity in a social media application using JPA. It explains defining fields like ID and description, and establishing a many-to-one relationship with the User entity. The tutorial also details configuring the User entity to handle multiple posts, creating corresponding database tables, and inserting data into the Post table. The use of lazy fetching to prevent recursion issues is highlighted, along with SQL commands for data insertion and verification.

What is the primary purpose of creating a Post entity in the context of this tutorial?

• To perform data encryption

• To handle network requests

• To store and manage post data

• To manage user authentication

How is a many-to-one relationship indicated in JPA?

• By using the @Entity annotation

• By using the @ManyToOne annotation

• By using the @OneToMany annotation

• By using the @JoinColumn annotation

What is the purpose of setting the fetch type to lazy in JPA?

• To immediately load all related entities

• To improve database indexing

• To prevent recursion and load data only when needed

• To enhance security by encrypting data

In the context of JPA, what does the 'mapped by' attribute specify?

• The database column name

• The primary key of the entity

• The owning side of the relationship

• The fetch type strategy

What is the result of configuring a one-to-many relationship from the User's perspective?

• A post can have multiple descriptions

• A single post can have multiple users

• A user can have multiple IDs

• A user can have multiple posts

What is the significance of the foreign key in the Post table?

• It serves as the primary key

• It indexes the post data

• It encrypts the post data

• It links the Post table to the User table

How can you verify the data inserted into the Post table?

• By checking the application logs

• By running a network trace

• By using the H2 console

• By reviewing the source code