10, "SQL and Logic," shows that there is an alternative to the relational algebra called the relational calculus. This means that queries, constraints, and view definitions can be formulated in ...

In this paper, the authors describe a custom relational algebra query software environment that enables database instructors to teach relational algebra programming. Instead of defining query ...

Description: An in-depth examination of relational database systems including theory and concepts as well as practical issues in relational databases. Modern database technologies such as ...