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

Database Design

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
June 2020
Language
English (United States)
Last Update
2021-01-22
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B035-1094
lifecycle
previous
Product Category
Teradata Vantage™

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.