A relation is said to be in DKNF if all constraints and dependencies that should hold on the the constraint can be enforced by simply enforcing the domain const...
ADO.NET provides DataRelation object to set relation between two columns.It helps to enforce the following constraints,a unique constraint, which guarantees t...
Authentication is the process of validating a user on the credentials (username and    password) and authorization performs after authentication. After Aut...
A declarative way to annotate the intended protection of Web content. A security constraint consists of a Web resource collection, an authorization constraint,...