'Course course' presentation slideshows

Answering Queries Using Views: A Survey

Answering Queries Using Views: A Survey. Alon Y. Levy Presented by: Catharina Vijay. Motivation. Rewriting queries using views is important because of its relevance in the following areas: Query optimization Maintenance of physical data independence Data integration

890 views • 49 slides

Relational Algebra & SQL

Lecture 5. Relational Algebra & SQL. Relational Algebra. The Relational Algebra is used to define the ways in which relations (tables) can be operated to manipulate their data. It is used as the basis of SQL for relational databases, and illustrates the basic operations required of any DML.

1.48k views • 39 slides

Design of Health Technologies lecture 1

Design of Health Technologies lecture 1. John Canny 8/29/05. Outline. Background on Health and Health Care Goals of the course Course format. Background. Current estimates of the cost of health care in the US put it at 1.8 billion (about 4x the defense budget).

513 views • 38 slides

Club Postgrad Event

345 views • 25 slides