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 ...

It often seems that working around things is a full-time task in every area of information technology. When workarounds are conceived and deployed, people are not always in agreement. Beyond ...

Arithmetic overflow error converting IDENTITY to data type int. This error occurs when attempting to insert a value that exceeds the data type limit of an IDENTITY ...

ON DELETE CASCADE--or ON DELETE SET NULL or ON DELETE SET DEFAULT ON UPDATE CASCADE--or ON UPDATE SET NULL or ON UPDATE SET DEFAULT -- ON DELETE CASCADE If you delete a department from the Departments ...