17.10 - Systematic Use of Default Values - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - Database Design

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
User Guide
Publication ID
B035-1094-171K
Language
English (United States)

Because SQL has a built-in, nonprocedural, method to handle default values (see the default value control phrases DEFAULT and WITH DEFAULT in Teradata Vantage™ - Data Types and Literals, B035-1143), no special coding is required on the part of users. Note that if no defaults are specified for a column and it is not defined as NOT NULL, then SQL automatically inserts nulls to represent any information missing from an INSERT request.