bug fix

examcloud-core-oe-admin-service/src/main/java/cn/com/qmth/examcloud/core/oe/admin/service/impl/ExamRecordForMarkingServiceImpl.java

@@ -198,7 +198,7 @@ public class ExamRecordForMarkingServiceImpl implements ExamRecordForMarkingServ
             return null;
         }
         StringBuffer sql = new StringBuffer();
-        sql.append("select id,exam_id,base_paper_id,paper_type,course_id,offline_file_name,offline_file_url " +
+        sql.append("select id,exam_id,base_paper_id,paper_type,course_id,offline_file_name,offline_file_url,batch_num " +
                 " from ec_oe_exam_record_4_marking where 1=1 ");
         if (id != null) {
             sql.append(" and id = " + id);