15.00 - Bivalent and Higher-Valued Logics - Teradata Database

Teradata Database Design

prodname
Teradata Database
vrm_release
15.00
category
User Guide
featnum
B035-1094-015K

Bivalent and Higher-Valued Logics

This topic presents a brief overview of the relevant predicate logic underlying the database relational model and the place of nulls in that logic.

A two‑valued logic (2VL) has 2 truth values: TRUE and FALSE. while a multivalued logic (MVL) has the truth values TRUE and FALSE plus an additional number, where the number of truth values depends on the individual logic.