Calling stored procedure using JPA @Query()

Question

Is it possible to execute SQL Server stored procedure using JPA @Query() like given below

@Query(nativeQuery = true, value = "exec [dbo].[uspGetVinorUserInfo] =:vin")
List<Object> findCommandStatusByVinOrderByCreatedTimestampDesc(@Param("vin") String vin);

Answer 1

It is possible since JPA 2.1 version, please read about NamedStoredProcedureQuery anotation. But it seems to me that you use some specific JPA implementation or some framework (possibly Spring Data JPA ?), because @Query annotation is not a part of JPA specification ; so it's difficult to me to provide concrete code snippet for your case.

Answer 2

I am not able to find a way to use @Query to execute MS-SQL SP, but I used the below code to execute the MS-SQL Stored Procedure and it is working fine.

package com.ford.cevs.scheduler.repository;
import org.springframework.stereotype.Repository;

import javax.persistence.EntityManager;
import javax.persistence.ParameterMode;
import javax.persistence.PersistenceContext;
import javax.persistence.StoredProcedureQuery;

@Repository
public class CommandStatusRepositoryImpl implements CommandStatusRepository {

@PersistenceContext
protected EntityManager em;

@Override
public String executeCommandStatusPurge(Integer minutes) {

        StoredProcedureQuery storedProcedure = em.createStoredProcedureQuery("MyProcedureName");

        // set parameters
        storedProcedure.registerStoredProcedureParameter("minutes", Integer.class, ParameterMode.IN);
        storedProcedure.setParameter("minutes", minutes);
        storedProcedure.execute();

        String result = (String)storedProcedure.getSingleResult();

        return result;
}
}  

MS-SQL Store Procedure

ALTER PROCEDURE [dbo].[MyProcedureName] @minutes int 
AS 
   SET nocount ON

    DECLARE @Message VARCHAR(40); 

      SET @Message = ' Completed, ' 

      -- <Your code> --- @minutes 

        SELECT @Message

The below link shows different ways: https://www.programcreek.com/java-api-examples/index.php?api=javax.persistence.StoredProcedureQuery