肖海南xml修改

src/main/resources/mapper/CourseLearningRecordMapper.xml

@@ -18,7 +18,7 @@
         FROM
             record_course_number rcn
         WHERE
-            CONCAT(',', cln.teacher_user_id, ',') LIKE CONCAT('%,', #{userId}, ',%')
+            CONCAT(',', rcn.teacher_user_id, ',') LIKE CONCAT('%,', #{userId}, ',%')
         ORDER BY
             number
                 DESC;