The Java Persistence query language (JPQL) is used to define searches against persistent entities independent of the mechanism used to store those entities. As such, JPQL is "portable", and not constrained to any particular data store.

Spring Data JPA does a property check and traverses nested properties, as described in Property Expressions. The following table describes the keywords supported for JPA and what a method containing that keyword translates to: Table 1. Supported keywords inside method names.

2024年4月12日 · In this tutorial, we’ll demonstrate how to use the @Query annotation in Spring Data JPA to execute both JPQL and native SQL queries. We’ll also show how to build a dynamic query when the @Query annotation is not enough.

JPQL is Java Persistence Query Language defined in JPA specification. It is used to create queries against entities to store in a relational database. JPQL is developed based on SQL syntax.

The Jakarta Persistence Query Language (JPQL; formerly Java Persistence Query Language) is a platform-independent object-oriented query language [1]: 284, §12 defined as part of the Jakarta Persistence (JPA; formerly Java Persistence API) specification.

JPQL is a powerful query language that allows you to define database queries based on your entity model. Its structure and syntax are very similar to SQL. But there is an important difference that I want to point out before I walk you through the different parts of a JPQL query.

2024年1月8日 · In this tutorial, we’ll see how to use JPA and Hibernate queries and the difference between Criteria, JPQL, and HQL queries. Criteria queries enable the user to write queries without using raw SQL. Along with Criteria queries, we’ll explore writing Hibernate Named Queries and how to use the @Query annotation in Spring Data JPA.