How to execute DELETE and SELECT statements as one query with JPA?

Question

I would like to get SELECT statement result before DELETE statement is executed, but they both use the same temporary table created at the beginning and I cannot use query.getResultList() and query.executeUpdate() at the same time. Is there any other way?

CREATE TEMPORARY TABLE xyzToDelete SELECT xyz FROM ...
----
SELECT * FROM xyzToDelete
----
DELETE FROM <using xyzToDelete>

private String deleteXYZ;
----
<here I put sql file content into this string>
----
Query query = em.createNativeQuery(deleteXYZ);
query.executeUpdate();

Answer 1

The problem with ACID. A transaction will rollback if not completed. You should split your SELECT & DELETE into two transactions.

your best bet would be:

Query query = em.createNativeQuery(CREATE TABLE xyzToDelete SELECT xyz FROM SELECT * FROM xyzToDelete);
List<String> results = query.getResultlist();
Query query2 = em.createNativeQuery(DELETE FROM xyzToDelete);
List<String> changes = query.executeUpdate();