INTERVAL YEAR Literals - Teradata Vantage NewSQL Engine - 16.20

Teradata Vantageā„¢ Data Types and Literals

prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1143-162K

Purpose

Declares an INTERVAL YEAR value in an expression.

Syntax



sign
An optional minus sign to indicate a negative interval. The default is a positive interval.
Note that the sign must be outside the apostrophes that enclose string.
string
One to four digits representing years. Spaces and new line characters are not allowed between the apostrophes.
Only digits within the apostrophes are parsed and converted to numeric. For example, '1.05' is treated as '105'.

ANSI Compliance

INTERVAL YEAR literals are partly ANSI SQL:2011 compliant.

The ANSI definition places the optional sign for the interval within the apostrophes; the Teradata implementation places the optional sign outside the apostrophes.

Type

INTERVAL YEAR

For details on the INTERVAL YEAR type, see INTERVAL YEAR Data Type.

Example: INTERVAL YEAR Literal

This example adds an interval of -2 years to the current system date. (For this example, assume the current system date is 11-03-1999.)

SELECT INTERVAL -'2' YEAR + CURRENT_DATE;
   
  (-2+Date)
-----------
1997/11/03