16.20 - NULL - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Content Type
Programming Reference
Publication ID
B035-1144-162K
Language
English (United States)
Last Update
2019-05-24

The default is NULL except when you copy a table definition using the CREATE TABLE … AS syntax, in which case the system carries the specification made for the source table over to the target table definition.

NOT
You must specify NOT NULL if you do not want nulls to be valid for the column.