mysql 一括アップデート

UPDATE tb_name SET `clumn_flg1`=REPLACE(`clumn_flg1`, '0', '1')
//0を1に変える

UPDATE tb_name SET clumn_flg1 = ELT(FIELD(clumn_id, 1,2,3), 1,1,1),clumn_update = ELT(FIELD(clumn_id, 1,2,3), NOW()) WHERE clumn_id IN (1,2,3)