I would very much appreciate your advice on the JPA. We have a database (PostgreSQL engine), and for tables it happens that a column has its DEFAULT. The database is connected to a Java backend (with JPA and Hibernate). What…
I am working on a Spring Boot app using Jpa and postgresql. It is a booking app that will notify the parties for coming bookings. I will have 3 user types: Admin, Customer and Employee. enter image description here I…
I have three entity employee , info, and address , i want mapped employee entity with info and address entity by using onetoone mapping by using hibernate and jpa annotation. @Entity public class Employee { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private…
I need to create an index for a 'TEXT' column in a MySQL database. I can't do it using this annotation @Table(name = "table1", indexes = @Index(name = "ix_table1_column1", columnList = "column1")) as MySQL can only index the first N…
I have a database in mysql called newdb, inside that database there are 2 tables, Track and User. When I run my springboot application, it creates 2 new tables called track and user and the application uses those tables instead…
I'm using hibernate to interact with a Postgres database. The query I'm trying to make selects Products that have not been assigned to a Branch yet. There is a many-to-many relationship between Products and Branches via the branch_product table. I…
I'm trying to delete the records where jsonb have one or more keys. My Data- id jsonb_col 1 [{"unit": "sale", "group": ["spares"]}] 2 [{"unit": "sale"}] 3 [{"member": "j1"}] after deleting for key in (unit, group), my data should be like…
I have a pre-existing Postgres table designed to automatically generate a DEFAULT value for a UUID typed column THAT IS NOT THE PRIMARY KEY. Here's the DDL: CREATE SEQUENCE IF NOT EXISTS uuid_column_table_seq; CREATE TABLE IF NOT EXISTS uuid_column_table (…
I am new to Hibernate and getting either error or null value when trying to fetch any row from my existing Table in MySQL database. I have a Table named 'Customers', the table structure defined in sql is as below…
In JPA I want to autogenerate an integer primary key where the generation should start from, say, 1000. I'm new to JPA and I have used IDENTITY type earlier to avoid those extra id tables that JPA otherwise generates. I've…