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

SQL External Routine Programming

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
June 2020
Language
English (United States)
Last Update
2021-01-24
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dita:id
B035-1147
lifecycle
previous
Product Category
Teradata Vantage™

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,
   ... )
{  ... }