CREATE/REPLACE FUNCTION MAPPING Syntax | Teradata Vantage - CREATE FUNCTION MAPPING and REPLACE FUNCTION MAPPING Syntax - Advanced SQL Engine - Teradata Database

{ CREATE | REPLACE } FUNCTION MAPPING [ database_name_1. | user_name_1. ] function_mapping_name
  FOR [ { database_name_2. | user_name_2. } [ schema_name. ] ] function_name
  [ SERVER [ database_name_3. | user_name_3. ] server_name] 
  [ EXTERNAL SECURITY { DEFINER TRUSTED [ authorization_name ] | 
    [INVOKER] TRUSTED authorization_name } ]
  [ MAP JSON (json_document) ]
  [ USING table_list ] [;]

table_list

{ ANY IN TABLE | name [(value)] [ IN TABLE | OUT TABLE ] } [,...]