联调修改

src/main/resources/mapper/ExamStudentDao.xml

@@ -5,7 +5,7 @@
     <select id="findExportData" resultType="cn.com.qmth.print.manage.dto.ExamStudentExportDTO">
         SELECT
             SUBSTRING_INDEX(course_code,'_',1) AS subjectCode,
-            SUBSTRING_INDEX(course_code,'_',2) AS subjectName,
+            SUBSTRING_INDEX(course_code,'_',-1) AS subjectName,
             exam_number AS examNumber,
             student_code AS studentCode,
             name AS name,