16.20 - Example: CREATE … AS Requests That Produce a Table With a Primary Index - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Syntax and Examples

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Published
March 2019
Language
English (United States)
Last Update
2019-05-24
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Assume that you define the following primary-indexed table.

     CREATE TABLE source (
       column_1 INTEGER
       column_2 INTEGER)
     UNIQUE PRIMARY INDEX (column_1);

The following CREATE TABLE … AS requests both produce primary-indexed tables; however, the second creates the table with a nonunique primary index.

     CREATE TABLE target
     AS source
     WITH NO DATA;
     CREATE TABLE target AS (SELECT column_1, column_2
                             FROM source)
     WITH DATA 
     PRIMARY INDEX (column_1);