Java UDF Execution Environment | External Routine Programming | Teradata Vantage - Java UDF Execution Environment - Analytics Database - Teradata Vantage

SQL External Routine Programming

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-07-11
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B035-1147
lifecycle
latest
Product Category
Teradata Vantage™

Teradata supports two types of servers that can execute Java external routines (UDFs and external stored procedures). The type of server that executes a Java UDF depends on whether the CREATE FUNCTION or REPLACE FUNCTION statement specifies an EXTERNAL SECURITY clause.

IF the CREATE/REPLACE FUNCTION statement … THEN Teradata …
specifies the EXTERNAL SECURITY clause uses a separate secure server to execute the UDF under the authorization of a specific native operating system user established by a CREATE AUTHORIZATION or REPLACE AUTHORIZATION statement.
does not specify the EXTERNAL SECURITY clause executes the UDF as a thread of a hybrid server that runs under the authorization of the 'tdatuser' operating system user.

Whether a CREATE FUNCTION or REPLACE FUNCTION statement needs to specify the EXTERNAL SECURITY clause depends on the types of resources (if any) that the UDF needs to access during execution. For more information, see Resource Access.