随机

src/main/resources/mapper/course/CourseDetailsDao.xml

@@ -54,10 +54,9 @@
 
 
     <select id="selectCourseDetailsList" resultType="com.sqx.modules.course.entity.CourseDetails">
-        select cd.*,
+        select cd.*
-               MD5(`course_details_id`) AS `uid`
         from course_details cd
-        order by SUBSTR(uid, ${randomNum}, 6)
+        order by ORDER BY RAND();
     </select>
 
     <select id="countCourse" resultType="Map">