17.05 - Example: Function Mapping Definition Using EXTERNAL SECURITY Clause for JSON Data Files - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Manipulation Language

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Release Date
January 2021
Content Type
Programming Reference
Publication ID
B035-1146-175K
Language
English (United States)

This statement defines the function mapping READ_NOS_json_fm for the READ_NOS table operator to query JSON data files. The function mapping includes the authorization DefAuth and a return type of NOSREAD_RECORD.

CREATE FUNCTION MAPPING READ_NOS_json_fm
  FOR READ_NOS
  EXTERNAL SECURITY DEFINER TRUSTED DefAuth
  USING
    LOCATION('/S3/td-usgs.s3.amazonaws.com/JSONDATA'),
  RETURNTYPE('NOSREAD_RECORD') ;