1 Relational Algebra Chapter 4, Part A. 2 Relational Query Languages Query languages: Allow manipulation and retrieval of data from a database. Relational.
COMP 5138 Relational Database Management Systems Semester 2, 2007 Lecture 5A Relational Algebra.
Relational Algebra Jianlin Feng School of Software SUN YAT-SEN UNIVERSITY courtesy of Joe Hellerstein for some slides.
Relational Algebra and My SQL
