-- 更新时序性相关日期字段的值
UPDATE t_hbss_capacityitem SET fbred = {ts'2023-03-20 00:00:00'} where fbred is null;
UPDATE t_hbss_capacityitem SET fbsed = {ts'2023-03-20 00:00:00'} where fbsed is null; 
UPDATE t_hbss_capacityitem SET fbsled = {ts'2999-12-31 00:00:00'} where fbsled is null;
UPDATE t_hbss_capacityitem SET ffirstbsed = {ts'2023-03-20 00:00:00'} where ffirstbsed is null and fdatastatus='1'; 