diff --git a/web/src/main/resources/sql/jlw/teacherOpenCourseStudentSigninLog.md b/web/src/main/resources/sql/jlw/teacherOpenCourseStudentSigninLog.md
index 66c16fc8..54365f2f 100644
--- a/web/src/main/resources/sql/jlw/teacherOpenCourseStudentSigninLog.md
+++ b/web/src/main/resources/sql/jlw/teacherOpenCourseStudentSigninLog.md
@@ -592,14 +592,12 @@ summary
 * 签到汇总
 
   SELECT
-    COUNT( DISTINCT t.teacher_open_course_student_signin_setting_id ) AS total_signin_count,
-    SUM( CASE t.teacher_open_course_student_signin_log_tag WHEN 10 THEN 1 ELSE 0 END ) AS total_signin_number,
-    SUM( CASE t.teacher_open_course_student_signin_log_tag WHEN 20 THEN 1 ELSE 0 END ) AS total_un_signin_number,
-    SUM( CASE t.teacher_open_course_student_signin_log_tag WHEN 10 THEN 1 ELSE 0 END ) / count( 1 ) * 100 AS total_attendance_rate
+  COUNT( DISTINCT t.teacher_open_course_student_signin_setting_id ) AS total_signin_count,
+  IFNULL(SUM( CASE t.teacher_open_course_student_signin_log_tag WHEN 10 THEN 1 ELSE 0 END ),0) AS total_signin_number,
+  IFNULL(SUM( CASE t.teacher_open_course_student_signin_log_tag WHEN 20 THEN 1 ELSE 0 END ),0) AS total_un_signin_number,
+  IFNULL(SUM( CASE t.teacher_open_course_student_signin_log_tag WHEN 10 THEN 1 ELSE 0 END ) / count( 1 ) * 100,0) AS total_attendance_rate
   FROM teacher_open_course_student_signin_log t
   where 1=1
   @if(!isEmpty(teacherOpenCourseId)){
   and t.teacher_open_course_id =#teacherOpenCourseId#
-  @}
-  t.teacher_open_course_schedule_session_snap_status = 1
-  
\ No newline at end of file
+  @}
\ No newline at end of file