17.10 - Example: Non-Valid MODIFY PRIMARY INDEX Statements - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1144-171K
Language
English (United States)

The following requests are not valid. These examples do not specify options that alter the table.

     ALTER TABLE orders 
     MODIFY PRIMARY INDEX;
    
     ALTER TABLE orders 
     MODIFY NOT UNIQUE PRIMARY INDEX;

The next example attempts to alter the table not to have a primary index and to add column and row partitioning. The request uses correct syntax but is not valid because orders is populated with rows.

     ALTER TABLE orders 
     MODIFY NO PRIMARY INDEX 
     PARTITION BY (COLUMN ADD 5,
                   RANGE_N(o_ordertsz BETWEEN TIMESTAMP 
                                      '2003-01-01 00:00:00.000000+00:00'
                                      AND     TIMESTAMP 
                                      '2009-12-31 23:59:59.999999+00:00' 
                                      EACH INTERVAL '1' MONTH) );