UDT_name / VARIANT_TYPE - Analytics Database - Teradata Vantage

SQL External Routine Programming

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-07-11
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iiv1628111441820.ditamap
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dita:id
B035-1147
lifecycle
latest
Product Category
Teradata Vantageā„¢

C Data Type Definition

typedef int UDT_HANDLE;

Usage

Use the UDT_HANDLE data type when passing a distinct or structured (including dynamic) UDT argument or returning a distinct or structured UDT.

Here is an example using a UDT in a UDF definition and UDT_HANDLE in a C function declaration.

SQL Function Definition Equivalent C Function Declaration
CREATE FUNCTION F1 (
  A circleUDT )
RETURNS circleUDT
 ...;
void f1( UDT_HANDLE *a,
         UDT_HANDLE *result,
   ... )
{  ... }

Here is an example using a dynamic UDT in a UDF definition and UDT_HANDLE in a C function declaration.

SQL Function Definition Equivalent C Function Declaration
CREATE FUNCTION F1 (
  A VARIANT_TYPE )
RETURNS INTEGER
 ...;
void f1( UDT_HANDLE *a,
         INTEGER *result,
   ... )
{  ... }