Excercises for Relational Databases 2 - IfIS
Transcription
Excercises for Relational Databases 2 - IfIS
Technische Universität Braunschweig Institut für Informationssysteme http://www.ifis.cs.tu-bs.de Wolf-Tilo Balke, Christoph Lofi Deductive Databases & Knowledge Based Systems Sheet 6 Exercise 1 Provided is following ( ( ( ( ( ( ( ) ) ) ) ) ) ) ( ( ( ) ) ) ( ( ( program: ) ) ) ( ) 1. Transform the program to relational algebra by providing ( ) and 2. Compute the fixpoint relations by using your results from 1. Exercises for Relational Databases 1 Institut für Informationssysteme – TU Braunschweig - http://www.ifis.cs.tu-bs.de ( )