select class_id, school_id, grade_id, year, name, status, create_time, update_time from b_busi_classes select t1.class_id, t1.school_id,t2.name school_name, t1.grade_id,t3.name grade_name, t1.year, t1.name, t1.status, t1.create_time, t1.update_time from b_busi_classes t1 left join b_busi_schools t2 on t1.school_id = t2.id left join b_busi_grade t3 on t1.grade_id = t3.id and t1.school_id = #{schoolId} and t1.grade_id = #{gradeId} and t1.year = #{year} and t1.name like concat('%', #{name}, '%') and t1.status = #{status} order by t1.class_id desc where class_id = #{classId} insert into b_busi_classes school_id, grade_id, year, name, status, create_time, update_time, #{schoolId}, #{gradeId}, #{year}, #{name}, #{status}, #{createTime}, #{updateTime}, update b_busi_classes school_id = #{schoolId}, grade_id = #{gradeId}, year = #{year}, name = #{name}, status = #{status}, create_time = #{createTime}, update_time = #{updateTime}, where class_id = #{classId} delete from b_busi_classes where class_id = #{classId} delete from b_busi_classes where class_id in #{classId}