jpa tag

13 questions

1 answers
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When storing values using JPA, how to assign a key value to a class field mapped to @AnyToOne (see Foreign Key)

EntityTo establish a relationship inside, we mapped it using the @AnyToOne annotation. For example:@Entitypublic class Book { @Id @GeneratedValue private long id; @Column private String name; @ManyToO...

jpa hibernate spring-boot spring-data-jpa spring-data

1 years ago

1 answers
102 views
0

user permission table design

What I'm going to do now is to store multiple roles for each user, and there are several permissions attached to the role.user1.Role = [writer, reader]user2.Role = [editor, reader]writer.permission = ...

database spring-data-jpa

1 years ago

1 answers
75 views
0

SQL error not present in SQL statement

I wrote the code as below.There is no problem when running orderUser When executing orderDelete, the table is being modified normally, but a query statement error occurs.public interface BasketReposit...

spring-boot sql jpa

1 years ago

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