Spring Data: limit result for custom query
Solution 1
You can try this:
@Entity
@Table(name = "persons")
public class Person {
//...
}
@Query(value = "select * from persons limit 50", nativeQuery = true)
List<Person> getFirst50();
Don't forget to check whether your SQL server supports the limit keyword.
Solution 2
I would suggest to add "By" but without parameter, it would work:
List<Person> findTop100By();
Solution 3
Of course you can use @Query to order a result, it is an JPQL query e.g.
@Query("SELECT u FROM User u ORDER BY u.name ASC")
Further sorting can be done be either providing a PageRequest or using Sort directly.
https://docs.spring.io/spring-data/jpa/docs/current/reference/html/#jpa.query-methods.sorting
portux
Updated on June 21, 2022Comments
-
portux almost 2 years
In my Spring Data repository I (have to) use custom queries using the
@Query
annotation. I know I can limit the number of results in a named query like thatIterable<Person> findFirst5OrderByLastName()
or that it is possible to limit the number of results by passing a pageable like that
Iterable<Person> findByLastName(String lastName, Pageable pageable)
But is it possible to achieve the same when using a custom
@Query
annotation?TIA
EDIT
as I see my question is a little confusing, some clearification: What I want is to limit the number of the results I get, when using a custom query, so that I neither
1) need to specify the result-size through a pageable
2) need to use a named query to specify the result-size
In fact I want the limitation of the number of results to be completely transparent when invoking method (hence not passing a
Pageable
) and to not rely on the naming-scheme of Spring Data (as the meaning/function of the method is best conveyed through a custom name)-
dev4Fun almost 7 yearsPossible duplicate of setMaxResults for Spring-Data-JPA annotation?
-
portux almost 7 yearsI added some clearification on why I think it is not a duplicate/is not answered there
-
-
Anand over 6 yearsQuestion is related to How to Limit Query Result Size and not about SORT