15.00 - Table Column Definition and Constraint Abbreviations - Teradata Database

Teradata Database Design

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

Table Column Definition and Constraint Abbreviations

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