I am trying to add referential integrity to my database. I'm trying to add
a foreign key reference to one of my tables, but I'm getting an error when I
try to do so. Here's what I'm executing:
ALTER TABLE Campers ADD CONSTRAINT FK_Activities FOREIGN KEY FK_Activities
(ID)
REFERENCES ActivitySelections (PersonID)
ON DELETE CASCADE
ON UPDATE CASCADE;
When I execute this in the command line utility, I get the error, "Can't
create table '.\fccamp\#sql-33c_30.frm' (errno: 150)"
Does anyone know what this means, and how I can fix it? I'm using MySQL
5.?? on a Windows XP Pro (development machine).
Thanks,
Jesse
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