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 ...

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 ...

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 ...

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 ways to provide a group of tables: static groups: the groups and tables are loaded from a text file stored on the server github gist: the groups and tables are loaded from a github gits ...

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, ...

Relational algebra (RA) comprises an important basis of operations. It can be used to implement a variety of algorithms in satisfiability and constraint solving [21], graph analytics [24], program ...