16.20 - Examples - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Release Date
March 2019
Content Type
Programming Reference
Publication ID
B035-1145-162K
Language
English (United States)

Example: Querying for the Largest Integer Value

The following query returns the result 13.

   SELECT GREATEST(13, 6);

Example: GREATEST with DECIMAL Input

In the following query, if the input arguments have data types of DECIMAL(4,2) and DECIMAL(5,4), the return data type is DECIMAL(6,4) and the result value is 13.1200.

   SELECT GREATEST(13.12, 6.1234); 

Example: GREATEST with Character Input

The following query returns the result 'apples'.

   SELECT GREATEST('apples', 'alpha');

Example: Comparing Milliseconds in a TIMESTAMP

SELECT GREATEST('2003-08-17 12:15:24.756' (TIMESTAMP(6)), '2003-08-17 12:15:24.456' (TIMESTAMP(6)));

Result:

greatest('2003-08-17 12:15:24.756','2003-08-17 12:15:24.456')
-------------------------------------------------------------
                                   2003-08-17 12:15:24.756000