17.10 - Results of Aggregation on Zero Rows - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Functions, Expressions, and Predicates

Advanced SQL Engine
Teradata Database
Release Number
Release Date
July 2021
Content Type
Programming Reference
Publication ID
English (United States)

Aggregation on zero rows behaves as indicated by the following table.

This form of aggregate function … Returns this result when there are zero rows …
COUNT(expression) WHERE … 0
all other forms of aggregate_operator (expression) WHERE … Null
aggregate_operator (expression) … GROUP BY …

aggregate_operator (expression) … HAVING …

No Record Found