Example: Three-Dimensional ARRAY Type - Advanced SQL Engine - Teradata Database

SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Published
January 2021
Language
English (United States)
Last Update
2021-01-22
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B035-1144
lifecycle
previous
Product Category
Teradata Vantage™

These examples all create a 3-dimensional ARRAY type named seismic_cube based on the UDT measures_udt, which has the following SQL create text.

     CREATE TYPE measures_udt AS (
       amplitude INTEGER,
       phase     INTEGER, 
       frequency INTEGER);

The first example uses Teradata-style syntax and initializes all of its elements to nulls.

     CREATE TYPE seismic_cube AS 
       measures_udt ARRAY [1:5][1:7][1:20] 
     DEFAULT NULL;

The next example also uses Teradata-style syntax, but does not initialize its elements to nulls.

     CREATE TYPE seismic_cube AS 
     measures_udt ARRAY [1:5][1:7][1:20];