Hello, I want to create the following tables - where a foriegn key
references an auto_incremented primary key of another table. In my
simple logic, it seem like such a thing should be possible -- after all,
i just need the value of the referenced primary key. I know you can't
have 2 auto_increment columns in a table, and I have read up on the
errno: 150 but it still seems like this should be possible. Do I need
to rethink the table structure? Or do I just not understand something here?
create table foo (
foo_id int unsigned auto_increment,
foo_value int,
primary key(foo_id)
) type=innodb;
create table bar (
bar_id int unsigned auto_increment,
foo_id int unsigned,
bar_value int,
primary key (bar_id),
foreign key(foo_id) references foo(foo_id),
) type=innodb;
ERROR 1005: Can't create table './test/bar.frm' (errno: 150)
-justin
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