How to properly call PostgreSQL functions (stored procedures) within Spring/Hibernate/JPA?

Question

I\'m using Spring MVC 4, Hibernate and PostgreSQL 9.3 and have defined function (stored procedure) inside Postgres like this:

CREATE OR REPLACE FUNCTION spa.         


        

Answer 1

Since you're using PostgreSQL, you can, as you've already written, call any stored procedure of type function in SELECT (Oracle, otherwise, would let you only execute functions declared to be read only in selects).

You can use EntityManager.createNativeQuery(SQL).

Since you're using Spring, you can use SimpleJdbcTemplate.query(SQL) to execute any SQL statement, as well.