JPQL 함수
기본 함수
public class JpaMain {
public static void main(String[] args) {
Member member = new Member();
member.setName("관리자");
em.persist(member);
em.flush();
em.clear();
String query = "select concat ('a', 'b') From Member m";
List<String> result = em.createQuery(query, String.class).getResultList();
for (String s : result) {
System.out.println("s = " + s);
}
tx.commit();
}
}
사용자 정의 함수

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