Vanilla MySQL doesn't support any sort of referential integrity. You can use "InnoDB" tables (here) that add that functionality. If you're in a shared hosting environment, InnoDB support probably ...

Turning off referential integrity allows you to be more lax about the order tables are imported. You can do the import with referential integrity on (you have to be able to; otherwise you wouldn't ...

Referential integrity has not disappeared as something of value; instead, it has remained where it always was before databases, i.e., when needed, it is done inside application code. Aren’t we clever ...

Referential integrity helps manage data by enforcing validation between related entities. This enforcement follows logical semantics behind the database design -- i.e., an employee can only work for ...