The Problem of Absent Values in the Relational Data Model and Its Logic-Based Solution

Abstract

This thesis explains the logical foundations of the relational data model, introduces the problem of absent values and two existing attempts at solving it, and then presents a new solution based on ideas from philosophy of logic. See töö selgitab relatsioonilise andmemudeli loogilisi aluseid, tutvustab puuduvate väärtuste probleemi ning kaht varasemat katset seda lahendada ja esitab uue lahenduse, mis tugineb ideedele loogikafilosoofiast.