Referential Integrity - Analytics Database - Teradata Vantage

Database Introduction

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-09-27
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lifecycle
latest
Product Category
Teradata Vantageā„¢

Referential integrity is the concept of relationships between tables, based on the definition of a primary key and a foreign key. The concept states that a row cannot exist in a table with a non-null value for a referencing column if an equal value does not exist in a referenced column.

You can specify columns in a referencing table that are foreign keys for columns in a referenced table. You must define referenced columns as either primary key columns or unique columns.

Referential integrity prevents accidental database inconsistencies when you perform inserts, merges, updates, and deletes.