diff --git a/Tiobon.Core.Services/Ghre/Ghre_StudyRecordServices.cs b/Tiobon.Core.Services/Ghre/Ghre_StudyRecordServices.cs
index 2af5c6b7..7e79da8c 100644
--- a/Tiobon.Core.Services/Ghre/Ghre_StudyRecordServices.cs
+++ b/Tiobon.Core.Services/Ghre/Ghre_StudyRecordServices.cs
@@ -1104,7 +1104,7 @@ public class Ghre_StudyRecordServices : BaseServices<Ghre_StudyRecord, Ghre_Stud
         var staffId = App.User.StaffId;
 
 
-        var sql = @$"SELECT A.Id,
+        var sql = @$"SELECT * from (SELECT A.Id,
        A.StartTime  CourseBeginDate,
        A.EndTime CourseEndDate,
        A.RegisterStartTime,
@@ -1134,7 +1134,7 @@ WHERE A.Status !='Temporary' AND   (   EXISTS
              (SELECT 1
               FROM Ghre_OpenClassStaff C
               WHERE C.OpenClassId = A.ID AND c.StaffId = '{staffId}')
-       OR   dbo.[FE_CheckStaffGroup]({staffId},A.StaffGroupId)=1)";
+       OR   dbo.[FE_CheckStaffGroup]({staffId},A.StaffGroupId)=1)) A WHERE 1=1 ";
 
         string conditions = $"";