I have been resesarching this issue and realised that you cannot force referential integrity using a myisam database engine. Unfortunately I am using a myisam database engine. Did you use a innodb database engine to create the blue sky music database?. If not how did you (do you) force referential integrity using a myisam engine?
Secondly did you need to force referential integrity on any of the relationships in the blue sky music database?
Items.ItemcatID is a forign key relation to itemcategory.ItemcatID
orderdetails.DetailOrderID is a foreign key relation to orders.OrderID
orders.OrderStatus is a foreign key relation to orderstatustypes.StatusID
visitors.VisitorGroupID is a foreign key relation to groups.GroupID
If so could you please describe to me in detail how you do it? (sql statement)