insert into schedule_group_strategy_time_table group_id, group_strategy_id, specific_date, start_time, end_time, type, status, #{item.groupId}, #{item.groupStrategyId}, #{item.specificDate}, #{item.startTime}, #{item.endTime}, #{item.type}, #{item.status}, delete from schedule_group_strategy_time_table where group_strategy_id = #{groupStrategyId} and specific_date >= #{firstScheduleDate}