select class_id, school_id, year, name, online, status, stats, create_time, update_time from dz_classes SELECT c.* FROM `dz_teacher_class` tc JOIN `dz_classes` c ON tc.`class_id` = c.`class_id` WHERE tc.`teacher_id` = #{teacherId} AND NOW() < tc.`out_date` and school_id = #{schoolId} and year = #{year} and name like concat('%', #{name}, '%') and online = #{online} and status = #{status} and stats = #{stats} where class_id = #{classId} insert into dz_classes school_id, year, name, online, status, stats, create_time, update_time, #{schoolId}, #{year}, #{name}, #{online}, #{status}, #{stats}, #{createTime}, #{updateTime}, update dz_classes school_id = #{schoolId}, year = #{year}, name = #{name}, online = #{online}, status = #{status}, stats = #{stats}, create_time = #{createTime}, update_time = #{updateTime}, where class_id = #{classId} delete from dz_classes where class_id = #{classId} delete from dz_classes where class_id in #{classId}