package com.sincere.student.mapper; import com.sincere.student.model.Major; import com.sincere.student.model.UniversityMajor; import java.util.List; import java.util.Map; public interface UniversityMajorMapper { int insertBatch(List<UniversityMajor> list); int deleteByUniversityId(int universityId); List<Major> selectUniversityMajor(int universityId); Integer selectIdByMajor(Map<String, String> map); }