Category "one-to-one"

mongodb - combining multiple collections, but each individual query might not need all columns

Here is the scenario : We have 2 tables (issues, anomalies) in BigQuery, which we plan to combine into a single document in MongoDB, since the 2 collections (is

JPA Hibernate OneToOne children enity always fetches parent entity

I am having a problem with a OneToOne relationship. Trying to load a children entity will always result in an additional query that loads its parent, even if I

Using Enum values in @Query JPQL and @CreationTimestamp hibernate

I am stuck with some problem about using JPQL with spring data Here is my code snippets @Entity @Table //... public class Parent { @Id private Stri

How to restrict a Django model to a single one-to-one relation?

I am currently building a Django app that requires two different user types and I know that storing authentication information across multiple models/tables is