I have an entity that looks like this @Entity @IdClass(AId.class) class A { @Id private String userName @Id @NotNull @JoinColumn(name = "location_id", referenceColumnName = "id", nullable=false, foreignKey = @ForeignKey(name = ...)) private Location location; private String userInformation; } The class…
I have a table that looks like this: id A B 1 A1 B1 2 A1 B2 3 A2 B2 4 A2 B3 Then I have a list of items for which I want to find the corresponding database rows.…
I checked the behavior of SQL when we want to have values mapped immediately from an Entity to a DTO object, for example. If I gave an example in the constructor: SELECT new Test(T) FROM Test T I saw 2…
I'm working with a JPA query in a Spring Data repository that fetches data using DISTINCT and an ORDER BY clause. The query works without DISTINCT, but adding it results in the following error: Expression #1 of ORDER BY clause…
I am using the latest hibernate version (6.5) and hypersistence utils in this version is not supporting custom array types as it's natively supported by hibernate > 6.4. I've tested and this works natively for float[] arrays, so e.g. this…
I have a simple database table (PostgreSql) with the following data In the spring boot JPA application, the corresponding Entity class for this table is defined as follows import java.time.LocalDateTime; import org.hibernate.annotations.UpdateTimestamp; import jakarta.persistence.Entity; import jakarta.persistence.Id; import jakarta.persistence.Table; import lombok.AllArgsConstructor;…
I am unable to connect my spring boot application to a PostgreSQL database using Spring JPA. Below is my application.yaml file. spring: application: name: jaah datasource: url: jdbc:postgresql://db:5432/taah username: waah password: blah driverClassName: org.postgresql.Driver jpa: database-platform: org.hibernate.dialect.PostgreSQLDialect hibernate: ddl-auto: update…
I have been asking something similar in this question Link, but the answer did not resolve the problem. I saw a tutorial for handling circular references here the post. I applied those and the other ones, but no ones working…
For some time now, I've had a problem in VsCode where I end up with duplicate generated sources. For example, let's take the SiteEntity entity. In /target/generated-sources/annotations/com/.../sites, I'll find two classes: SiteEntity.java SiteEntity.java In the first one, in error, I…
I'm trying to run a Spring Boot Application, in where I'm trying to test the display of a list of cars on my Postgres database. The thing is that, when I try to run the app, is shutdowns inmediatly, because…