update y_contract_electric set del_flag=1
where contract_id=#{contract_id}
CASE WHEN cew.is_common=1 THEN cew.start_electric_peak_count_common
else a.start_electric_peak_count end
CASE WHEN cew.is_common=1 THEN cew.start_electric_flat_count_common
else a.start_electric_flat_count end
CASE WHEN cew.is_common=1 THEN cew.start_electric_valley_count_common
else a.start_electric_valley_count end
CASE WHEN cew.is_common=1 THEN cew.start_electric_meter_count_common
else a.start_electric_meter_count end
update y_contract_electric set del_flag=1
where id=#{id}