Cascading referential integrity constraints are foreign key constraints that tell SQL Server to perform certain actions when a primary key field in a primary key-foreign key relationship is updated or ...

Abstract: Database integrity is an important research content of database security, triggers can enforce the more complex referential integrity, and this paper studies the approach of using DML ...

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 ...