diff --git a/python/biopro/server/database.py b/python/biopro/server/database.py
index 803d1cc..c42ca8d 100644
--- a/python/biopro/server/database.py
+++ b/python/biopro/server/database.py
@@ -511,13 +511,10 @@ class DataBaseProcess(Process):
     @calculate_time(1)
     def data_meta_update_all_channel_raw_id(self, meta_id:str, raw_id_dict:dict):
         try:
-            sql_str = "UPDATE recording_data_metas SET raw_data = "
+            sql_str = "UPDATE recording_data_metas SET raw_data = jsonb_insert(raw_data, '{%s, -1}', '%s', TRUE) WHERE id = %s;"
             sql_set = []
             for ch in raw_id_dict.keys():
-                sql_str += "jsonb_insert(raw_data -> %s, '{-1}', '%s', TRUE) ||"
-                sql_set.extend([ch, raw_id_dict[ch]])
-            sql_str[:-2] + "WHERE id = %s;"
-            sql_set.append(meta_id)
+                sql_set.append([ch, raw_id_dict[ch], meta_id])
             with self._psql_conn as conn:
                     with conn.cursor() as sql_cursor:
                         execute_batch(sql_cursor, sql_str, sql_set)