Problems deleting an Xray project when using old Oracle database driver

When deleting a project, an integrity contraint is violated on the Xray AO_8B1069_TEST_EXAMPLE_STEP. This is due to the fact we are deleting rows from AO_8B1069_TEST_EXAMPLE_RESULT without previously deleting the corresponding foreign keys records from AO_8B1069_TEST_EXAMPLE_STEP.