Nesting Aggregates - Teradata Vantage - Analytics Database

SQL Functions, Expressions, and Predicates

Deployment
VantageCloud
VantageCore
Edition
VMware
Enterprise
IntelliFlex
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
ft:locale
en-US
ft:lastEdition
2025-03-30
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kby1472250656485
lifecycle
latest
Product Category
Teradata Vantageā„¢

Aggregate operations cannot be nested. The following aggregate is not valid and returns an error:

AVG(MAXIMUM (Salary)) 

Although direct nesting of aggregates is not supported, nested aggregates can be evaluated using a derived table that contains the aggregates to be nested. For more information, see Teradata Vantageā„¢ - Time Series Tables and Operations, B035-1208.

Also, aggregates can be nested in aggregate window functions. The following statement is valid and includes an aggregate SUM function nested in a RANK window function:

SELECT region
   ,product
   ,SUM(amount) 
   ,RANK() OVER (PARTITION BY region ORDER by SUM (amount))
FROM table;