RelaX is an online relational algebra tool that we will use for the assignments. It allows entering relational algebra expressions and executing them to get results ...

(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 ...

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 ...

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, ...

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 ...

Fueled by their promise to solve the problem of distilling valuable information and business insight from big data in a scalable and programmer-friendly way, noSQL databases have been one of the ...

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, ...