17.10 - Similarities With The Syntax For CREATE TYPE (Structured Form) - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Detailed Topics

Advanced SQL Engine
Teradata Database
Release Number
Release Date
July 2021
Content Type
Programming Reference
Publication ID
English (United States)

The syntax for CREATE TYPE (Distinct Form) is similar to that for the CREATE TYPE (Structured Form) statement.

The major distinguishing characteristics for distinct types are the following:

  • The AS predefined_data_type clause.

    For CREATE TYPE (Structured Form), the corresponding clause is AS attribute_name list with an optional INSTANTIABLE specification.

  • The mandatory FINAL specification.
  • The inability to create a user-defined constructor method signature for a distinct type.

    Structured UDTs allow you to define constructor method signatures.