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…
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…
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…
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…
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…
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…
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…
I want to embed date information in the primary key, for a table that will be partitioned (monthly) in a PostgreSQL database. This should in theory speed up the process on finding out in which partition to look for the…
I have a table that looks like this: CREATE TABLE `test_table` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `ref_id` bigint(20) NOT NULL, `count` int(11) DEFAULT NULL, `status` tinyint(4) NOT NULL, `create_timestamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, `update_timestamp` timestamp NOT NULL DEFAULT…
Hello guys， I am running into this error on my first trial on springboot, and the exception message makes no sense to me, the error message is as follows: 2022-10-03 22:27:15.801 ERROR 22836 --- [ main] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 -…