Adrian Matei for Codever

Posted on Aug 29, 2022 • Updated on Jan 10, 2023 • Originally published at codever.dev

How to execute delete statements with jpa query

#java #jpa #jpql #javascript

Use the executeUpdate method of the Query interface. It will return the number of deleted entries:

public int deleteOldMessages(int daysBack) {
  var query = em.createQuery("delete from Message m where createdAt < :givenTimestamp");
  query.setParameter(Message.GIVEN_TIMESTAMP, LocalDateTime.now().minusDays(daysBack));

  return query.executeUpdate();
}