16.20 - Teradata Unity Support for SQL Procedures - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Detailed Topics

Teradata Database
Teradata Vantage NewSQL Engine
Release Number
Release Date
March 2019
Content Type
Programming Reference
Publication ID
English (United States)

Teradata Unity sends request-specific context information as part of a request that calls an SQL procedure to enable Teradata Database to change the result of the procedure indirectly by substituting a value predefined by Teradata Unity for a non-deterministic result. Teradata Database makes this context information available to the SQL statements embedded within a procedure when it is called from the default connection for the session.

However, SQL procedures can generate and use their own arbitrary non-deterministic values that Teradata Database has no knowledge of. Therefore, Teradata Database cannot guarantee that an SQL procedure call produces a consistent result in a Teradata Unity environment.