Tag: jpa

JPA Batch inserts with non auto generated id

im triying to batch insert a few Million Entitys. The Batch insert kind of works, but my programm executes a few JDBC Statements in the background which i dont want. } my Repository: my Entity: my JPA Settings: The Batch Insert Does work, but if i try to Upload 100 Entitys i have 33 JDBC Statements which are checking the

Cursor based pagination for table without a unique and sequential id column?

java jpa pagination spring sql

I’m investigating using cursor-based pagination. I have the following (postgres) table: and had begun to sketch out the pagination query (not tested): I’ve been reading these posts: https://slack.engineering/evolving-api-pagination-at-slack-1c1f644f8e12 https://engineering.mixmax.com/blog/api-paging-built-the-right-way/ https://coderwall.com/p/lkcaag/pagination-you-re-probably-doing-it-wrong which both state that the cursor should be a unique, sequential column to paginate on. However, my table does not have an auto-incrementing sequential primary key. Instead it’s primary key

AnnotationException: A Foreign key refering has the wrong number of column. should be 0

database hibernate java jpa sql

What is the reason this error in Hibernate? org.hibernate.AnnotationException: A Foreign key refering com.Otomasyon.entity.Ogrenciler from com.Otomasyon.entity.AlinanDersler has the wrong number of …

‘Could not extract ResultSet’ error when using nativeQuery in JPA

java jpa sql

I’m using JPARepository in SpringBoot and using the @Query annotation but I get an error org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; …

How to sort by pagerequest with inner join

java jpa spring sql

I have two tables with many to one realtion. I want to sort data in table “user” by column “street” that is in “address” table in ASC or DESC direction defined by request param: localhost:8080/…

How to execute a native SQL query having INTERVAL clause through Spring Boot JPA?

jpa oracle spring-boot spring-data-jpa sql

Not able to execute a native SQL query through Spring Boot Repository layer with JPA in Oracle DB I am trying to write a native SQL query that gets data from a table between the current date and last …

hibernate multiple @OneToMany relationships generating more results in parent relationship

hibernate hibernate-mapping java jpa sql

I will start with the result. In the next image I am displaying the result content of company.userAccount. In the database I have only two companies assigned to the same user and 7 services attached to one of the companies. The generated query (simplified) is This will generate Expected result: I was expecting in the UserAccount to see only 2