diff --git a/nflg_project_dev/nflg-bom-new/src/main/resources/mapper/master/BomNewEbomChildMapper.xml b/nflg_project_dev/nflg-bom-new/src/main/resources/mapper/master/BomNewEbomChildMapper.xml
index ba743099..b6a850e1 100644
--- a/nflg_project_dev/nflg-bom-new/src/main/resources/mapper/master/BomNewEbomChildMapper.xml
+++ b/nflg_project_dev/nflg-bom-new/src/main/resources/mapper/master/BomNewEbomChildMapper.xml
@@ -54,7 +54,7 @@
     
     <update id="updateEBomMaterialUse">
         SET @@global.group_concat_max_len=804800;
-        delete from  t_bom_new_ebom_material_use;
+        TRUNCATE TABLE  t_bom_new_ebom_material_use;
         INSERT INTO  `t_bom_new_ebom_material_use` (`row_id`, `material_no`, `parent_material_no`)
 
         select   min(b.row_id) rowId,  b.material_no,  GROUP_CONCAt( distinct  a.material_no) as value_list