SET SESSION TRANSACTION ISOLATION LEVEL SQL Statement - SET SESSION TRANSACTION ISOLATION LEVEL - Teradata Vantage - Analytics Database

SQL Data Definition Language Syntax and Examples
Deployment
VantageCloud
VantageCore
Edition
VMware
Enterprise
IntelliFlex
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
ft:locale
en-US
ft:lastEdition
2025-11-22
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qkf1628213546010.ditaval
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mdr1472255012272
lifecycle
latest
Product Category
Teradata Vantage™

Changes the default transaction isolation level read-only semantics for the current session.

ANSI Compliance

SET SESSION CHARACTERISTICS AS TRANSACTION ISOLATION LEVEL is ANSI SQL:2011-compliant with extensions.

ANSI SQL does not support the abbreviations RU and SR. They are Teradata extensions.

Other SQL dialects support similar non-ANSI standard statements with names such as the following:
  • SET CURRENT ISOLATION
  • SET ISOLATION
  • SET TRANSACTION
  • SET SESSION CHARACTERISTICS

Although SET SESSION CHARACTERISTICS AS TRANSACTION ISOLATION LEVEL is technically a DCL statement, Vantage treats it as a DDL statement for transaction semantics.

Required Privileges

None.