Foreign Table Locks | CREATE FOREIGN TABLE | Teradata Vantage - 17.00 - Foreign Table Locking - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
Release Date
September 2020
Content Type
Programming Reference
Publication ID
B035-1144-170K
Language
English (United States)

Vantage cannot issue standard database transaction locking against data in external object storage, therefore these queries behave as if the foreign table has only an access lock (as if you used the LOCKING TABLE... FOR ACCESS request modifier).

If you perform a join between a foreign table and a Vantage native table, normal transaction locking rules still apply to the Vantage table.