Example: Upsert Without Specifying Primary Index - 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™

This example shows an upsert UPDATE request that does not specify the primary index in its WHERE clause.

     UPDATE sales
     SET item_count = item_count + 1
     WHERE sale_date = '05/30/2000'
     ELSE INSERT INTO sales (10, '05/30/2000', 1);

When the primary index is not specified in the UPDATE portion of an upsert request, the operation could have to perform an all-row scan to find rows to update. This is not the purpose of upsert form of UPDATE. This case returns an error.