Purpose of the Atomic Upsert Operation - 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™

The single-pass upsert is described as atomic to emphasize that its component UPDATE and INSERT SQL statements are grouped together and performed as a single, or atomic, SQL request.

Existing Teradata Parallel Data Pump scripts that use the upsert feature in its Teradata Parallel Data Pump-specific form, using paired UPDATE and INSERT requests, do not have to be changed to take advantage of the atomic upsert capability because Teradata Parallel Data Pump automatically converts an UPDATE INSERT request pair in its older syntax into a corresponding atomic upsert request whenever appropriate.

The atomic upsert syntax can also be used by any CLIv2-based applications and is particularly useful when coded directly into BTEQ scripts.