我在sql中有问题我想更新表这是我的查询
update TICKET set voz_sub_som = (select foiz_sub * tarif_som / 100 AS "Total Cost" FROM TICKET) from ticket
enter image description here
检查一下
update TICKET set voz_sub_som = (select foiz_sub * tarif_som / 100 AS "Total Cost" FROM TICKET)