diff --git a/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs b/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs
index 184c25b..ba53b85 100644
--- a/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs
+++ b/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs
@@ -941,16 +941,17 @@ namespace Repository.BackendRepository.Implement
                     sb.Append($@" SET SQL_SAFE_UPDATES = 0;
                             UPDATE device_item d
                             LEFT JOIN (
-                                SELECT m.device_system_tag, m.device_name_tag, m.device_point_name, m.full_name, device_building_tag
+                                SELECT m.device_system_tag, m.device_name_tag, m.device_point_name, m.full_name, device_building_tag, date(created_at) as created_at
                                 FROM import_niagara_item m
-                                WHERE (m.is_history = 1)
+                                WHERE m.is_history = 1
                                 LIMIT 100000 -- Specify your desired limit here
                             ) AS subquery
                             ON d.device_system_tag = subquery.device_system_tag
                             AND d.device_name_tag = subquery.device_name_tag
                             AND d.points = subquery.device_point_name
                             AND d.device_building_tag = subquery.device_building_tag
-                            SET d.is_show_history = CASE WHEN subquery.device_point_name IS NULL THEN 0 ELSE 1 END;");
+                            SET d.is_show_history = CASE WHEN subquery.device_point_name IS NULL THEN 0 ELSE 1 END
+                            where date(d.created_at) = subquery.created_at;");
 
                     using (TransactionScope scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
                     {