Customers using Vantage delivered as-a-service cannot create their own C++ and Java UDFs, UDMs, UDTs, or External Stored Procedures.
The internal and external representations of structured UDTs are indicated in the following table:
| FOR this type of representation … | A structured UDT is stored in the following format: |
|---|---|
| internal | A concatenation of the data types of its individual attributes. |
| client | however, it is defined by its fromsql transform functionality. See CREATE TRANSFORM and REPLACE TRANSFORM for details. Client software does not see UDT values, but values having a predefined data type representing a UDT on the Teradata platform. How a platform UDT is transformed to a client predefined type is entirely at the discretion of the transform developer. |
See the appropriate Teradata Tools and Utilities documentation for details of how a particular client application deals with structured UDTs.