Hibernate 6, Postgres, and bytea – Postgresql
With the release of Hibernate 6, once again I am scratching my head trying to figure out how to get Hibernate to convert a @Lob to bytea for a PostGres database. I also need the code to be testable with…
OneToMany relationship not saving correctly into Postgresql
Thanks a lot for taking time to read my post. Please could you help me. I want to have a oneToMany relationship in my database such as: RelationShip Between Objects in DB I am using Spring, JPA, Mappers and Repos…
How to set query timeout in Spring Boot using Mysql as Databse?
I am using Spring boot with Mysql. I have implemented Datasource and defined properties in application.xml file. I have a long running query: @Query(value - "select sleep(10)", nativeQuery=true) public void test(); in JPA repository methods. I want to implement query…
How to update only one attribute of Database using Hibernate… Since it assigns NULL values due to getters and setters? – Mysql
I am trying to update a row by using its primary key, the issue is that Hibernate updates entire row and since I have not passed values for any other attributes (For Ex : Attributes are empid, name salary and…
Generate a Composite ID for an entity – Mysql
I have an entity where I want to generate value like this. like this id tenant 1 1 2 1 3 1 1 2 2 2 3 2 1 3 2 3 3 3 Keep in mind that multiple instances…
How to get null records after passing 'null' string in HQl – Mysql
I Am trying to write one query. Below is the query ritten till now. @Query(value = "select cn from CapNumber cn " + "WHERE (:#{#request.number} = '' OR cn.number LIKE CONCAT('%',:#{#request.number},'%')) " + "AND (:#{#request.name} IS '' OR cn.name LIKE…
How to delete entity in ManyToMany Relationship: Spring Boot and Hibernate – Mysql
I have two entities- User Category There is a @ManyToMany relationship between the two entities. My code, to create this relationship is- 1.User.java @ManyToMany(cascade = { CascadeType.DETACH, CascadeType.MERGE, CascadeType.REFRESH }, fetch = FetchType.LAZY) @JoinTable(name = "enrolled", joinColumns = @JoinColumn( name…
Hibernate doesn't creating table based on entity – Mysql
After starting the program (launching TomCat) there are no tables created in the schema, but the table "player" has to be created automatically. I checked hibernate config, but can't find where is the problem. I've tried changing hbm2ddl.auto to hibernate.hbm2ddl.auto…
Spring boot unable to create database schema and insert values on load at MYSQL
I'm unable to get spring boot to automatically load my database schema when I start it up. I am using MySQL as an external DB. Please find below the code application properties spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect spring.jpa.hibernate.ddl-auto=update spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/carsdb spring.datasource.username=root spring.datasource.password=password Application.java package…
Postgresql – Create sequence with order AAB, AA1, AA9, ABA
I am trying to create sequence that stored in db. So just only with one service call I should get new sequence by order like AAB. Next call should return AAC, next AAD.... AA9, ABA... I tried to create three…