16.20 - DOUBLE PRECISION / FLOAT / REAL - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL External Routine Programming

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Release Date
April 2020
Content Type
Programming Reference
Publication ID
B035-1147-162K
Language
English (United States)

C Data Type Definition

typedef double REAL;
typedef double DOUBLE_PRECISION;
typedef double FLOAT;

Usage

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

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