16.10 - Table Column Definition and Constraint Abbreviations - Teradata Database

Teradata Database Design

Product
Teradata Database
Release Number
16.10
Release Date
June 2017
Content Type
User Guide
Publication ID
B035-1094-161K
Language
English (United States)

The following set of abbreviations is used throughout this manual to denote various characteristics of, or constraints on, table columns.

Abbreviation Definition
FK Foreign key
NC No changes allowed
ND No duplicates allowed
NN No nulls allowed
PK Primary key
SA System-assigned value
UA User-assigned value