15.00 - Relationship Theory - Teradata Database

Teradata Database Design

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

Relationship Theory

Definition of Degree

The degree of a relationship is the number of entities associated in the relationship. Typical degree descriptions are provided in the following table:

 

For a relationship among this many entities …

The following term is commonly used to describe the relationship …

1

Unary

2

Binary

3

Tertiary

n

n-ary