update

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

@@ -93,7 +93,7 @@
 	</delete>
 	
     <delete id="deleteByUserIdAndMusicGroupId" parameterType="map">
-		DELETE FROM music_group_student_fee_ WHERE userId = #{userId} and music_group_id_ = #{musicGroupId}
+		DELETE FROM music_group_student_fee_ WHERE user_id_ = #{userId} and music_group_id_ = #{musicGroupId}
 	</delete>
 
     <!-- 分页查询 -->