15.00 - Modeling 1:1 Relationships - Teradata Database

Teradata Database Design

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

Modeling 1:1 Relationships

1:1 relationships are modeled by placing the primary key of entity A as a foreign key component of entity B with no duplicates allowed. Because the relationship is symmetrical, you could just as well place the primary key of entity B as a foreign key component of entity A.