Spring Boot Jpa Native Query

In this tutorial, you'll learn about Fix Spring Boot JPA Native Query Not Returning Results. We cover key concepts, practical examples, and best practices.

The Problem

Native SQL queries return unexpected results or fail to map to entity objects.

Quick Fix

Set nativeQuery=true

Wrong:

@Query("SELECT * FROM products WHERE price > :price")
// Missing nativeQuery=true

Output:

JPQL parsing error

Right:

@Query(value = "SELECT * FROM products WHERE price > :price", nativeQuery = true)
List<Product> findExpensive(@Param("price") BigDecimal price);

Output:

Native query executed

Map result correctly

Wrong:

@Query(value = "SELECT p.id, p.name FROM products p", nativeQuery = true)
List<Product> findAll();

Output:

Cannot map to entity

Right:

@Query(value = "SELECT * FROM products", nativeQuery = true)
List<Product> findAll();

Output:

Native query mapped to entity

Use SqlResultSetMapping

Wrong:

@Query(value = "SELECT p.id, p.name, c.name as category FROM products p JOIN categories c", nativeQuery = true)
List<Object[]> findWithCategory();

Output:

Object[] result

Right:

@SqlResultSetMapping(name = "ProductDetail", classes = @ConstructorResult(targetClass = ProductDetail.class, columns = {
    @ColumnResult(name = "id"), @ColumnResult(name = "name"), @ColumnResult(name = "category")
}))
@Query(value = "SELECT ...", nativeQuery = true, resultSetMapping = "ProductDetail")

Output:

Mapped to DTO

Prevention

• Set nativeQuery=true for SQL queries
• Use * for entity mapping or SqlResultSetMapping for custom results
• Use DTO projections for partial results

Common Mistakes with boot jpa native query

1. Overlapping type class instances that cause GHC to reject the program with ambiguous dispatch errors
2. Non-exhaustive pattern matches that compile with warnings then crash at runtime
3. Misunderstanding that String is [Char] with poor performance for large text operations

These mistakes appear frequently in real-world SPRING code. DodaTech's contributors have identified these patterns through analysis of open-source projects and production systems.

Practice Exercise

Write a pure function that safely divides two integers using Maybe, then test it with edge cases like division by zero and negative numbers.

This exercise reinforces the concepts covered in this guide. Try implementing it before checking online solutions.

FAQ

This quick fix is part of the DodaTech Spring & JVM ecosystem series. Built by the developers of Doda Browser, DodaZIP, and Durga Antivirus Pro.