Hello.
Use InnoDB tables instead of MyISAM. See: http://dev.mysql.com/doc/mysql/en/ansi-diff-foreign-keys.html "Philipp Snizek" <[EMAIL PROTECTED]> wrote: > Hi > > I run a Postfix MTA attached to a mysql DB with various domains on it. > A domain consists of email addresses. > When I want to delete the domain the referenced email addresses should > be deleted, too. But that doesn't work and I don't know why. > > here are the two tables domains and users: > > CREATE TABLE domains ( > ID_DOMAINS int(11) auto_increment, > active int(1) not null, > domain varchar(50) NOT NULL, > PRIMARY KEY (ID_DOMAINS) > ) TYPE=3DMyISAM; > > create table users ( > email varchar (80) primary key unique not null, belongs_to integer not > null, foreign key (belongs_to) references domains on delete cascade ); > > if I use the delete command like "delete from domains where > id_domains=3D'1'" the dataset that belongs to id 1 in domains is deleted > while the email addresses belonging to this domain are left untouched. > > What am I missing? > > thanks > Philipp > -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.NET http://www.ensita.net/ __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Gleb Paharenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.NET <___/ www.mysql.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
