ticket_sold_tigger.sql

来自「该票务系统包括的功能有网上订票、历史订阅纪录查询、近期上映影片推荐和查询和统计报」· SQL 代码 · 共 9 行

create or replace trigger ticket_sold_tigger before insert on bookRecord
referencing new as new
for each row
begin
	update ticket
	set sold = '1'
	where ticket_id = :new.ticket_id ;
end;