(a) Consider again Question 3 in Tutorial 1 (Challenge) to find the restaurants that sell all the pizzas that Maggie likes and don’t sell any pizza that Ralph likes. Write a relational algebra ...

For this assignment, you will need to submit 3 files. The first file is a .sql file that should contain all the SQL code relating to problems requesting the development of such code. The second file ...

As data analytics has become an important application for modern data management systems, a new category of data management system has appeared recently: the scalable linear algebra system. We argue ...

There are two types of relational database manipulation language: procedural and assertional. A procedural language is one in which a query is expressed through a sequence of operations. This category ...

Abstract: This paper expresses one-to-many transformations by extending relational algebra to resolve the problem that relational expressions are difficult to execute one-to-many data transformations, ...

This post continues the series from the Adjoint School of Applied Category Theory 2022. It is a summary of the main ideas introduced in this paper: Filippo Bonchi, Dusko Pavlovic and Pawel Sobocinski, ...

Abstract: This paper presents BR∀CE, a Blockly-based, tile-based [11] environment to develop relational algebra and relational calculus queries. The tool runs in a browser, works with any database ...