Delete Cascade

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От Marcelo Pereira
Тема Delete Cascade
Дата
Msg-id 00a201c0ab06$20031400$0b01a8c0@hmmg
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Ответы Re: Delete Cascade
Re: Delete Cascade
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Hi,
 
I am in trouble deleting rows in cascade.
 
I have a scheme like this:
 
create table author (author_cod integer primary key, author_name char(20));
create table book (book_cod integer primary key, book_autor integer references author(author_cod), book_title char(30));
 
I would like to delete a 'author' in the author table and also all your books in the book table.
 
When I run
 
delete from author where author_cod = <number>
 
I dont get the row deleted if there is a row referenced by in the book table.
How can I delete my rows in cascade ???
 
Thanks in advance,
 
Marcelo Pereira
Computer Programmer

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