'Database constraints' diaporamas de présentation

Overview of system design

Overview of system design. Understanding the Elements of Design. Design is process of describing, organizing, and structuring system components at architectural design level and detailed design level Focused on preparing for construction Like developing blueprints Three questions

3.28k views • 83 slides

412 views • 29 slides

Rules in active databases and integrity constraints

Rules in active databases and integrity constraints. Recap integrity constraints. normal forms express FDs, MVDs, JDs candidate and foreign keys entity integrity referential integrity; foreign key rules business (enterprise) integrity constraint rules domain constraints

220 views • 7 slides