Data Type of Nulls - Analytics Database - Teradata Vantage

SQL Data Manipulation Language

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-04-05
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lifecycle
latest
Product Category
Teradata Vantage™

When you specify an explicit NULL for any intersection operation, its data type is INTEGER. For an example of this principle using the UNION operator, see Example: Effect of Explicit NULLs on Data Type of a UNION.

On the other hand, column data defined as NULL has neither value nor data type and evaluates like any other null in a scalar expression.