17.10 - Example - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - Data Types and Literals

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1143-171K
Language
English (United States)

In this example, the time zone displacement specified in the literal, INTERVAL '04:00' HOUR TO MINUTE, is used to determine the UTC value '2008-06-01 04:30:00' and time zone displacement, INTERVAL '04:00' HOUR TO MINUTE, of the literal.

The CAST result is the source expression value '2008-06-01 04:30:00' at UTC with the target time zone displacement, INTERVAL -'08:00' HOUR TO MINUTE.

The result value of the CAST at UTC is adjusted to time zone displacement, INTERVAL -'08:00' HOUR TO MINUTE, and the result of the SELECT statement is: TIMESTAMP '2008-05-31 20:30:00-08:00'. The current session time zone has no effect.

SET TIME ZONE INTERVAL '09:00' HOUR TO MINUTE;
SELECT CAST(TIMESTAMP '2008-06-01 08:30:00+04:00'
   AS TIMESTAMP(0) WITH TIME ZONE AT -8);