READ_NOS Function Mapping | VantageCloud Lake - Define a Function Mapping for READ_NOS - Teradata Vantage

Teradata® VantageCloud Lake

Deployment
VantageCloud
Edition
Lake
Product
Teradata Vantage
Published
January 2023
Language
English (United States)
Last Update
2024-04-03
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You can use function mapping to hide credentials in an authorization object. After you create the function mapping, you can use the mapped authorization object in queries and avoid exposing your credentials.

The user needs the following privileges to create an authorization object and a function mapping. Contact your administrative user for assistance.
  • CREATE AUTHORIZATION privilege to create an authorization object
  • CREATE FUNCTION privilege to create a function mapping

You can define a function mapping for the READ_NOS function with the EXTERNAL SECURITY clause to include an authorization. You can also define a function mapping which includes the ANY IN TABLE clause for querying files without an extension.