'Isa relationship' presentation slideshows

Chapter 8 The Enhanced Entity-Relationship Model and the Object-Relational Model

Chapter 8 The Enhanced Entity-Relationship Model and the Object-Relational Model. Fall 2012. Why Extend the E-R Model?. E-R suitable for traditional business applications E-R not semantically rich enough for advanced applications Applications where E-R is inadequate

795 views • 51 slides

The Entity-Relationship Model

The Entity-Relationship Model. Instructor: Mohamed Eltabakh meltabakh@cs.wpi.edu. Part II. Entities with Different Attribute Types (Recap). Multivalued Attribute: major. Primitive Attribute: sNumber. Composite Attribute: address. Student entity type with all its attributes. DoB. Age.

734 views • 50 slides

The Entity-Relationship Model

The Entity-Relationship Model. Part-3. Instructor: Mohamed Eltabakh meltabakh@cs.wpi.edu. More Elements in ER Model. Key Constraints Cardinality Constraints Weak Entities Subclass Entities (ISA Relationships) Principles for Good Design. Weak Entity Sets.

391 views • 39 slides

Welcome to BUAD 310

Welcome to BUAD 310. Instructor: Kam Hamidieh Lecture 17, Wednesday March 26, 2014. Agenda & Announcement. Today: Chapter 18 Reading: All of Chapter 18 Note: Homework 4 is due TODAY by 5 PM. NO EXTENSIONS will be given.

451 views • 34 slides

CS411 Database Systems

CS411 Database Systems. Kazuhiro Minami. 08: Midterm Review. Midterm Details. 3:30pm next Tuesday on October 13 75 minutes (regular class time slot) Please arrive early Bring UIUC photoid, pen, pencil, eraser Closed book, no notes. Questions during exam.

455 views • 33 slides

Relational Model

572 views • 29 slides

Databases Illuminated

Databases Illuminated. Chapter 8 The Enhanced Entity-Relationship Model and the Object-Relational Model. Why Extend the E-R Model?. E-R suitable for traditional business applications E-R not semantically rich enough for advanced applications Applications where E-R is inadequate

279 views • 14 slides