Examples | ARRAY_AVG Function | Teradata Vantage - 17.10 - Example: Querying a 1-D ARRAY Data Type and Table using ARRAY_AVG - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - Data Types and Literals

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1143-171K
Language
English (United States)

Consider the following 1-D ARRAY data type and table.

CREATE TYPE item_price AS DECIMAL(7,2) ARRAY[20];
CREATE TABLE inventory (itemkind INTEGER,
                        regular_price item_price,
                        sale_price item_price);

When evaluating the following query, each element value of the regular_price array is added. The total sum of all the element values is then divided by the number of elements in the regular_price array.

SELECT ARRAY_AVG(regular_price) FROM inventory;

In the following query, ARRAY_AVG adds each element within the specified scope of the regular_price array. The result is a scalar value representing the total sum of adding the affected element values of regular_price divided by the total number of elements composing the specified scope.

SELECT ARRAY_AVG(regular_price, 5, 10)FROM inventory;