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 ...

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 ...

Google's John Mueller said that using self-referential canonicals is a good way to clean up small SEO mistakes. He was asked about it on Reddit, about the difference between self-referential ...