17.10 - Source Code Contents - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - SQL External Routine Programming

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1147-171K
Language
English (United States)

The topics that follow provide details about the contents of the C or C++ source code for an external stored procedure. In general, the contents of the C or C++ source code must:

  • Define the SQL_TEXT constant
  • Include the sqltypes_td.h header file
  • Define the parameter list in the order that matches the parameter passing convention specified in the CREATE PROCEDURE statement
A C++ UDF or external procedure must catch all C++ exceptions by the end of the UDF or external procedure code. Any exception that is not caught and is thrown out from the routine may result in unexpected behavior.