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

SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
Published
September 2020
Language
English (United States)
Last Update
2021-01-23
dita:mapPath
wgr1555383704548.ditamap
dita:ditavalPath
lze1555437562152.ditaval
dita:id
B035-1144
lifecycle
previous
Product Category
Teradata Vantage™

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.