SET SESSION TRANSACTION ISOLATION LEVEL SQL Statement - 17.05 - SET SESSION TRANSACTION ISOLATION LEVEL - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Release Date
January 2021
Content Type
Programming Reference
Publication ID
B035-1144-175K
Language
English (United States)

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.