JPQL Named Query
Explore how to create and use JPQL named queries in Spring Data JPA by defining a pre-named SELECT query on the Player entity. Understand to retrieve all player records via the PlayerRepository and how to execute these queries for effective entity management.
We'll cover the following...
In the previous lesson, we implemented all CRUD operations except for the method corresponding to a SELECT * query. We will implement this method using a named query in Java Persistence Query Language (JPQL). A named query in JPA is a pre-defined query that is given a unique name and associated with an entity. Named queries allow us to encapsulate commonly used queries directly within our entity classes, promoting code reuse, readability, and maintainability.
A named query is defined on an entity, which in our case is the Player class. We will use the named query in a method ...