PL/SQL觸發器-firing問題3

Question

我試圖回答這個問題：

創建一個顯示「插入書」每次插入後觸發。

我嘗試：

create trigger insert_book after insert on Books 
for each rows 
begin 
insert into books (id_book,title) values(12,'book12'); 
end; 

Answer 1

試試這個....觸發

CREATE TRIGGER insert_book ON [dbo].[Books] 
FOR INSERT 
AS 
    insert into books (id_book,title) values(12,'book12'); 
    PRINT 'Insert Book' 
GO