15.10 - METHOD - Teradata Database

The name of the method to be used to convert a source UDT value to the target data type.

You cannot invoke an SQL UDF from a CREATE CAST or REPLACE CAST request.

method_name

A method associated with the specified UDT_name must exist with the same signature.

The method must satisfy the following conditions.

• Associated UDT is the same as the source data type.
• Declared parameter list is empty.
• Result data type is the same as the target data type.
• Must be deterministic.

If no method is found, an error is returned.

INSTANCE

The object is an instance method.

FOR UDT_name

The name of the UDT associated with method_name.