17.05 - Large Objects and UPDATE - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Manipulation Language

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Release Date
January 2021
Content Type
Programming Reference
Publication ID
B035-1146-175K
Language
English (United States)

The behavior of truncated LOB updates differs in ANSI and Teradata session modes. The following table explains the differences in truncation behavior.

In this session mode … The following behavior occurs when non-pad bytes are truncated on insertion …
ANSI an exception condition is raised.

The UPDATE fails.

Teradata no exception condition is raised.

The UPDATE succeeds: the truncated LOB is stored.