'Software product educational product' diaporamas de présentation

Lecture 02: Conceptual Design

Lecture 02: Conceptual Design. Wednesday, October 6, 2010. Nulls. count(category ) != count(*) WHY ? Office hours: Thursdays, 5-6pm. Announcements. Homework 2 is posted: due October 19 th You need to create tables, import data: On SQL Server, in your own database, OR

1.07k views • 96 slides

Conceptual Design with ER Model

Conceptual Design with ER Model. Lecture #2. Administrivia. Undergrads must take 3 hours, must do the course project Grads 1 unit: course project + paper survey .75 unit: course project only Grads and undergrads can team up. Lecture Outline. Steps in building a database application

1.57k views • 57 slides

Lecture 9: E/R Diagrams and Functional Dependencies

500 views • 31 slides

Lecture 08: E/R Diagrams and Functional Dependencies

Lecture 08: E/R Diagrams and Functional Dependencies. Modeling Subclasses. The world is inherently hierarchical. Some entities are special cases of others We need a notion of subclass. This is supported naturally in object-oriented formalisms. Products. Software products.

398 views • 31 slides