SELECT * FROM exam_subject WHERE id_ = #{id} SELECT * FROM exam_subject ORDER BY id_ INSERT INTO exam_subject (id_,examination_basic_id_,subject_id_,create_time_,update_time_,tenant_id_) VALUES(#{id},#{examinationBasicId},#{subjectId},NOW(),NOW(),#{tenantId}) INSERT INTO exam_subject (examination_basic_id_,subject_id_,create_time_,update_time_,tenant_id_) VALUES (#{examSubject.examinationBasicId},#{examSubject.subjectId},NOW(),NOW(),#{examSubject.tenantId}) UPDATE exam_subject examination_basic_id_ = #{examinationBasicId}, subject_id_ = #{subjectId}, id_ = #{id}, tenant_id_ = #{tenantId}, update_time_ = NOW() WHERE id_ = #{id} DELETE FROM exam_subject WHERE id_ = #{id} SELECT * FROM exam_subject ORDER BY id_ SELECT COUNT(*) FROM exam_subject SELECT * FROM exam_subject WHERE examination_basic_id_=#{examId} SELECT es.id_ exam_subject_id_ ,s.* FROM exam_subject es LEFT JOIN subject s on es.subject_id_ = s.id_ WHERE examination_basic_id_ = #{examId}