DELETE FROM mom_eam_equipment_maintenance_plan_detail WHERE plan_id = #{mainId} SELECT * FROM mom_eam_equipment_maintenance_plan_detail WHERE plan_id = #{mainId} select t1.id id, t1.standard_id standardId, t1.plan_id planId, t1.plan_start_time planStartTime, t1.plan_end_time planEndTime, t2.num standardNum, t2.equipment_id equipmentId, t3.num equipmentNum, t3.name equipmentName, t3.model model from mom_eam_equipment_maintenance_plan_detail t1 left join (select * from mom_eam_maintenance_standard where del_flag = 0) t2 on t1.standard_id = t2.id left join mom_eam_equipment t3 on t2.equipment_id = t3.id where t1.plan_id = #{mainId}