update

edu-user/edu-user-server/src/main/java/com/keao/edu/user/service/impl/ExamRoomServiceImpl.java

@@ -271,10 +271,10 @@ public class ExamRoomServiceImpl extends BaseServiceImpl<Long, ExamRoom> impleme
 
 		examRoomStudentRelationService.deleteWithExamRooms(examRoomIds);
 
-		examCertificationDao.deleteWithRegist(registIds);
-
-		studentExamResultDao.deleteWithRegists(registIds);
-
+		if(!CollectionUtils.isEmpty(registIds)){
+			examCertificationDao.deleteWithRegist(registIds);
+			studentExamResultDao.deleteWithRegists(registIds);
+		}
 		examTeacherSalaryService.teacherSalarySettlementWithExam(examRoom.getExaminationBasicId());
 
 		examRoomDao.batchDeleteExamRooms(examRoomIds);