I can input data into 2 different tables, namely the question table and the answer table. But I have difficulty displaying the data according to each id_question. I have tried it but all the data in the answer table is…
I have this one to many problems with table of books and categories on my laravel project. three data I insert two of which is had same category column value with the corresponding id of said categories. before I insert…
SQLite Error 1: no such table: __EFMigrationsHistory It happens after I migrate and update database. I am using a combination of Entity Framework Core and SQLite and have several DbSets in my DbContext file: using Microsoft.EntityFrameworkCore; using VinylTap.Models; namespace VinylTap.ClientApp.Data…
The rough layout I have for some complex queries follows this table structure in Postgres: CREATE TABLE primari ( id BIGINT NOT NULL PRIMARY KEY, name TEXT NOT NULL ); CREATE TABLE secondary ( primary_id BIGINT NOT NULL references primari…
I have 2 tables, which represent one to many relationship CREATE TABLE a( id int, a_text varchar(255) ); And CREATE TABLE b( a_id int, b_text varchar(255) ); Where column b_text contains enum values. Table A: Id a_text 1 'text 1'…
I have 2 entity classes. One employee should has one department. But one department can has many employees. When I send to postman request insert employee, I want to trigger Department table. @Table @Entity(name = "employee") @Data @Builder @AllArgsConstructor @NoArgsConstructor…
In a one-to-many relationship, users have many contracts. However, I only want the most recent contract for a specific set of users. My query to get all contracts for users look like this: SELECT userid FROM contract WHERE userid IN…
I have 2 models Scheme & Sponsor with a many-to-many relationship with pivot SchemeSponsor. The pivot table has a one-to-many relationship with ContributionRate. I want to get all sponsors related to a scheme together with all contributionrates. Scheme id name…
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…
I have a problem to make migration with relationship. case : 1 Department will have many Employees 1 Employee belongTo 1 Department 1 Department will have one manager (from employees table) Here is my migration Schema::create('departments', function (Blueprint $table) {…