update t_bcm_isscheme set feffectivedate = {ts '1970-01-01 00:00:00'} where feffectivedate is null and fenable = '0';
update t_bcm_isscheme set feffectivedate = {ts '1970-01-01 00:00:00'}, fstatus = '1' where feffectivedate is null and fenable = '1';