referencing new as n for each row 表示什么意思??
在视图当中创建视图:
create trigger order_tr instead of insert on ord_view referencing new as n for each row
declare
cursor ecur is select * from order_master where order_master.orderno=:n.orderno;
........
问:
referencing new as n for each row 表示什么意思??
n表示的是什么??为什么在N前面加":"(语法规则)?