Locks and Concurrency - Advanced SQL Engine - Teradata Database

SQL Data Manipulation Language
Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Published
July 2021
Language
English (United States)
Last Update
2021-07-27
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B035-1146
lifecycle
previous
Product Category
Teradata Vantage™

An UPDATE (Upsert form) operation sets a WRITE lock for the row being updated. For a nonconcurrent load isolated update on load isolated table, the update operation sets an EXCLUSIVE lock.