班级学生关系表加乐团编号

mec-biz/src/main/resources/config/mybatis/StudentRegistrationMapper.xml

@@ -307,7 +307,7 @@
 
     <update id="batchUpdateSubject">
         UPDATE student_registration SET actual_subject_id_ = #{subId},update_time_ = now()
-        WHERE user_id_ = #{userIds} AND payment_status_ = 0 AND music_group_id_ = #{musicGroupId}
+        WHERE user_id_ = #{userId} AND payment_status_ = 0 AND music_group_id_ = #{musicGroupId}
     </update>
 
     <select id="queryStudentInfo" resultMap="StudentInfo">