Relational calculus serves as the foundation for SQL, the language widely used to manipulate data in relational databases. It consists of operators that express logical conditions and algebraic ...

Abstract: One of our goals is to formalize an equivalence class(FEC) of the fuzzy relational database(FRDB). FRDB, an extension of RDB using a soft computing ...

Relational calculus. Query processing and optimization. Transaction processing: failure, recovery, and concurrency. Database security. Logic-based systems. Parallel ...

Relational database management systems (RDBMS) rely on an optimizer (or relational optimizer) that transforms SQL statements into executable code. Before any SQL statement can be run by the RDBMS, the ...

This project serves as a frontend for my bachelor's thesis. The backend is available here. The project was initially written using class components. I then used it to try out new stuff – I didn't ...

We show that the relational semantics of the Lambek calculus, both nonassociative and associative, is also sound and complete for its extension with classical propositional logic. Then, using ...

Educational Studies in Mathematics, Vol. 79, No. 3, The inverse principle: Psychological, mathematical, and educational considerations (March 2012), pp. 371-388 (18 pages) The basis of this ...